MongoDB is used for its strength in managing online transaction processing (OLTP) with a document model that naturally aligns with domain-specific transactions and their access patterns. In addition to these capabilities, MongoDB supports advanced search techniques through its Atlas Search index, based on Apache Lucene. This can be used for near-real-time analytics and, combined with aggregation pipeline, add some online analytical processing (OLAP) capabilities. Thanks to the document model, this analytics capability doesn't require a different data structure and enables MongoDB to execute hybrid transactional and analytical (HTAP) workloads efficiently, as demonstrated in this article with an example from a healthcare domain. Traditional relational databases employ a complex query optimi…  ( 15 min )

Introduction In this article, we'll explore how to decrypt cookie values retrieved from Google Chrome using C#. If you've stumbled upon encrypted cookies in your code and need a way to decrypt these values effectively, you're in the right place. This guide aims to provide a comprehensive understanding of the decryption process while using C#. Understanding the Issue When accessing cookies stored by Google Chrome, it is common to encounter encrypted values. The cookies are stored in a SQLite database, and the encrypted values can pose a challenge when you need to retrieve the actual data. Chrome uses a specific encryption mechanism that relies on Windows Data Protection API (DPAPI) for Windows systems. Therefore, to decrypt the cookies, you must understand this encryption approach. Step-by-…  ( 5 min )

To install docker on the Fedora/Centos/RedHat/Oracle Linux OS and to grant it sudo privileges, follow these instructions: # install docker sudo dnf -y install dnf-plugins-core sudo dnf config-manager --add-repo=https://download.docker.com/linux/centos/docker-ce.repo sudo dnf install -y docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin sudo systemctl enable docker.service # make docker sudo sudo groupadd docker sudo usermod -aG docker $USER sudo systemctl restart docker Making docker part of the sudo group allows you to use docker commands like docker ps without needing to add sudo at the beginning. The information provided on this channel/article/story is solely intended for informational purposes and cannot be used as a part of any contractual agreement. The content does not guarantee the delivery of any material, code, or functionality, and should not be the sole basis for making purchasing decisions. The postings on this site are my own and do not necessarily reflect the views or work of Oracle or Mythics, LLC. This work is licensed under a Creative Commons Attribution 4.0 International License.  ( 3 min )

$50 masterpiece in an $80 industry. Cost ≠ Quality - Imgur Discover the magic of the internet at Imgur, a community powered entertainment destination. Lift your spirits with funny jokes, trending memes, entertaining gifs, inspiring stories, viral videos, and so much more from users. imgur.com  ( 2 min )

Ozempic and Wegovy ingredient may reverse signs of liver disease The diabetes and weight loss drug semaglutide reversed liver scarring and inflammation. It’s among several drugs in the works for the condition MASH. sciencenews.org  ( 3 min )

Mathematician Finds Solution to One of The Oldest Problems in Algebra : ScienceAlert Solving one of the oldest algebra problems isn't a bad claim to fame, and it's a claim Norman Wildberger can now make: The mathematician has solved what are known as higher-degree polynomial equations, which have been puzzling experts for nearly 200 years. sciencealert.com  ( 3 min )

AI-Fueled Spiritual Delusions Are Destroying Human Relationships Marriages and families are falling apart as people are sucked into fantasy worlds of spiritual prophecy by AI tools like OpenAI's ChatGPT rollingstone.com  ( 3 min )

OpenAI abandons plan to become a for-profit company | The Verge The maker of ChatGPT is giving up on becoming a normal company. theverge.com  ( 3 min )

Abstract This post explores how open source developer financial support and community networks are powering innovation in blockchain, NFTs, and decentralized finance (DeFi). We discuss historical context, the key concepts behind sustainable funding models, and real-world applications. Emphasizing transparency, governance, and technical integration, we delve into innovative funding mechanisms such as sponsorship platforms, crowdfunding, and blockchain tokenization. With practical examples, challenges, and future outlooks, readers will gain insights into how industry stakeholders—from developers to investors—can nurture a thriving and secure open source ecosystem. The world of open source software is evolving rapidly, and with the rise of blockchain, NFT marketplaces, and DeFi platforms, f…  ( 10 min )

Check out this Pen I made!  ( 2 min )

🚀 Why GitLab CI/CD Over Jenkins and GitHub Actions? Feature GitLab CI/CD Jenkins GitHub Actions Integrated UI ✅ Built-in ❌ Plugin-based ✅ Built-in Auto DevOps ✅ Native support ❌ Manual ❌ Kubernetes Deployment ✅ First-class ✅ With plugins ✅ Beta level Security (Secrets, SAST, DAST) ✅ Built-in ❌ Manual config ⚠️ External Runners Management ✅ Docker/Machine/K8s ✅ Nodes ✅ Hosted/self-hosted Everything in one place (version control + CI/CD) Great for GitOps and K8s-based workflows Easy syntax, strong security model No plugin hell like Jenkins 📁 Pipeline Basics '# Comments' # This job builds the project build: script: - echo "Compiling..." stages stages: - build - test - deploy stage test: stage: test script: echo "Running tests" scr…  ( 4 min )

When working with APIs, we often encounter data in formats that do not match our application's preferred coding style. For instance, if you're using TypeScript and Vue.js, you might receive data in snake_case from an API but prefer to work with camelCase throughout your application. The good news is that you can easily transform this data without losing type safety. Let's delve into how you can achieve that with the help of interfaces and utility types in TypeScript. Understanding the Problem When you define an interface such as MergedReviewDetails, you structure your data according to your application's needs. An example of this could be: export interface MergedReviewDetails { parentReview: Mmcid; childReviews: Mmcid[]; } However, the API might return data with properties in snake_ca…  ( 4 min )

In the ever-expanding universe of cloud computing, AWS reigns supreme. As the undisputed market leader, its infrastructure services power countless businesses worldwide. This dominance fuels an insatiable demand for skilled professionals who can design, implement, and manage sophisticated network configurations within the AWS ecosystem. If you're looking to carve out a niche as a top-tier cloud networking expert, the AWS Advanced Networking – Specialty (ANS-C01) certification might be your golden ticket. But is this notoriously tough certification truly worth the effort? Let's break it down. The AWS Certified Advanced Networking – Specialty is not for the faint of heart. It's an expert-level certification designed for seasoned IT professionals who architect and manage complex network syste…  ( 6 min )

🎓 I just earned the "Software Engineering Essentials" certificate from IBM! I'm excited to share that I’ve completed the Software Engineering Essentials course as part of the IBM Full Stack Software Developer Professional Certificate on Coursera. 📜 Here's my certificate: 🔗 View Certificate PDF on GitHub This course gave me a solid understanding of: Software development lifecycle Agile methodology Git and GitHub basics Industry-level software practices I'm excited to continue building more skills as I complete the rest of the specialization! SoftwareEngineering #IBMCertificate #Coursera #FullStack  ( 3 min )

Introduction Passing parameters from ASP.NET MVC page models to TypeScript functions can be tricky, especially when incorporating dynamic values such as token, url, and redirectUrl. In this guide, we will explore how to accomplish this effectively, ensuring that we maintain optimal coding practices. Understanding the Basics When working with TypeScript and ASP.NET MVC, it is crucial to understand how data flows between the server-side (C# code) and client-side (TypeScript/VBScript/JavaScript code). The Link.ts you provided defines an interface LinkConfig and an asynchronous function postData. This function needs to be called with correctly structured parameters that are passed from your Razor pages. Step 1: Setting Up the Razor Page Model In your Razor pages, extract the token, URL, and re…  ( 4 min )

Handling file uploads is a common feature in modern web applications. Whether you're building a profile system, a document portal, or an image gallery, you'll likely need to upload files to a server. In this blog, you’ll learn how to use Multer (a popular Node.js middleware) to handle file uploads from a React.js frontend. Let’s build a simple file upload app with React.js on the frontend and Node.js/Express on the backend using Multer. React.js (Frontend) Node.js + Express (Backend) Multer (Middleware for file uploads) Axios (For HTTP requests) Render or Vercel (for deployment, optional) Multer is a middleware for handling multipart/form-data, which is used to upload files. It makes handling file uploads in Express simple and customizable. file-upload-app/ ├── backend/ │ ├── uploads/ │ …  ( 4 min )

Originally published on Medium. ✍️ Introduction At IBM, I led the transformation of one such platform: the Cognitive Support Platform (CSP). Originally built as a monolithic, Salesforce-native application, it had outgrown its architecture. We rebuilt it from the ground up into a modular, event-driven, cloud-native system infused with AI. The results were real and measurable: ✅ 70% increase in system availability ✅ 90%+ reduction in AI inference costs ✅ 80% improvement in platform security ✅ 70% boost in developer productivity In this article, I’ll share the architectural strategies, DevOps patterns, and AI integration principles that made this transformation successful and scalable. 🏗️ Background: The Challenge We faced critical bottlenecks that limited innovation and scalability: Difficu…  ( 6 min )

In the world of corporate security, not all breaches involve sophisticated hacking tools—some simply walk through the front door. Tailgating, a subtle yet dangerous form of intrusion, happens when an unauthorized person gains access to a restricted area by following closely behind someone who is authorized. It's a tactic that relies less on technology and more on exploiting human behavior. Attackers often masquerade as employees, contractors, or delivery workers. They may carry packages, wear uniforms, or claim to have forgotten their access badge—all to lower suspicion. Once inside, these individuals can do far more than just roam the premises. They might access critical systems, plant malicious software, or steal sensitive equipment. Pretending to be a colleague and asking someone to hol…  ( 4 min )

In the era of AI-driven workflow automation, combining n8n’s visual orchestration platform with OpenAI’s cutting-edge language models unlocks unprecedented possibilities. CometAPI—a newly launched AI model aggregation platform—addresses this need by unifying access to over 500 models under a single, consistent API interface. CometAPI promises ultra‑high concurrency, low‑latency responses, and simplified billing through a serverless architecture designed for enterprise‑scale workloads. Concurrently, n8n continues to cement its position as a fair‑code, source‑available workflow automation tool, offering hundreds of prebuilt nodes and a versatile HTTP Request node that empowers users to integrate virtually any RESTful service—including CometAPI—into visual workflows with minimal effort. Comet…  ( 6 min )

The Pain of Missing Env Vars We've all been there: deploying a Node.js application only to have it crash immediately (or worse, subtly misbehave) because a crucial environment variable like DATABASE_URL was missing, empty, or malformed. Debugging configuration issues after deployment is frustrating and time-consuming. Manually checking process.env properties everywhere is tedious and error-prone. What if you could guarantee your application's required environment variables are present and valid before any of your core application logic runs? What if you could get full type safety for your process.env object? schema-env v2.1 That's exactly why I built schema-env! It's a lightweight Node.js library that loads your standard .env files, merges them with process.env, and validates the resul…  ( 5 min )

GPT-Image‑1 represents a significant milestone in the evolution of multimodal AI, combining advanced natural language understanding with robust image generation and editing capabilities. Unveiled by OpenAI in late April 2025, it empowers developers and creators to produce, manipulate, and refine visual content through simple text prompts or image inputs. This article dives deep into how GPT-Image‑1 works, exploring its architecture, capabilities, integrations, and the latest developments shaping its adoption and impact. GPT-Image‑1 is the first dedicated image-centric model in OpenAI’s GPT lineup, released via the OpenAI API as a state‑of‑the‑art image generation system. Unlike specialized models such as DALL·E 2 or DALL·E 3, GPT‑Image‑1 is natively multimodal—it processes both text and im…  ( 7 min )

It was a regular evening debug session. My code was working, but something about it just felt off. I was looping over a list—like always. for i in range(len(my_list)): value = my_list[i] # Do something with value and i Nothing wrong, right? Except... I was starting to hate reading my own code. range(len(...)). Too much manual indexing. 👀 The Realization for i, value in enumerate(my_list): # Do something with i and value Wait... what? No range(len(...))? No messy indexing? ✅ Cleaner 🧠 Why it works: enumerate() is a built-in Python function that returns both the index and the value of items in an iterable—in one shot. It’s like your loop suddenly gained superpowers. 💡 Bonus Tip: for i, val in enumerate(my_list, start=1): print(f"Item {i}: {val}") Perfect for user-facing counters. No more +1 hacks. 🚫 Never Again... No more range(len(...)) unless I really need it. Now, it’s all enumerate(), all day. ✨ Moral of the Story: If you're reaching for range(len(...)), stop and ask yourself— What would enumerate() do? 😎  ( 3 min )

When working with Lumerical FDTD simulations, access to specific fields from the results of a far-field projection monitor might sometimes be challenging, especially when it comes to field names with spaces. In your case, you're able to access standard fields like E2 and Es easily: farfield = getresult("monitor", "farfield"); E2 = farfield.E2; Es = farfield.Es; However, when it comes to the field "Ep vs angle", an error arises. This can happen due to the space in the field name, making direct access using dot notation invalid. Understanding the Structure of the Farfield Object The farfield object typically contains several fields, including E2, Es, and multiple arrays or matrices concerning angles and wavelengths. The fields you can access directly using dot notation are designed to be id…  ( 4 min )

About I was writing a program in go, where I was calling a function,which takes an existing slice, modifies it and returns it back.Then I had a print statement that prints that slice. did not assign the return value of the function call,which is the modified slice,to the old slice variable.In Rust or in some other languages,the compiler will yell at us if we leave the return values of a function call without assigning them. go compiler will not give an error if we leave return values of a function call. So, always look for the function signature before calling the function.  ( 3 min )

In November 2023, the internet trembled when OpenAI’s leadership imploded. Overnight, one of the most powerful AI systems in the world—ChatGPT—was at the mercy of a centralized boardroom battle. For billions of users and developers, it was a stark reminder: centralized power in artificial intelligence isn’t just a technical issue, it’s a social risk. What if critical AI infrastructure wasn’t vulnerable to a single point of control? What if the world’s most powerful models couldn’t be turned off, censored, or hijacked? Welcome to the world of Decentralized AI. "Centralized AI is a castle built on sand. Decentralized AI is a city built by its citizens." As a developer and researcher in Nairobi, I learned this lesson the hard way. In mid-2023, I was building an AI-powered voice assistant for …  ( 6 min )

As your Markdown-based knowledge base grows, it becomes harder to manage without a clear structure. Categorizing your content into folders and using simple metadata makes your system scalable, readable, and maintainable — all while staying lightweight. Group your Markdown files into categories using folders: docs/ ├── guides/ │ ├── setup.md │ └── deployment.md ├── faq/ │ ├── general.md │ └── troubleshooting.md ├── references/ │ └── api.md You can use folder names like guides, faq, or references as logical categories when generating UI elements or menus. Add YAML frontmatter at the top of your Markdown files for more control: --- title: "Setup Guide" category: "Guides" tags: ["installation", "setup"] --- Use a frontmatter parser (like gray-matter in Node or custom regex in JS) t…  ( 4 min )

Introduction When working with third-party SDKs that leverage Jetpack Compose, developers can often run into issues that only appear in the final APK. In this article, we will explore a specific case of a NoSuchMethodError that arises during navigation to a Compose-based screen of a third-party SDK. This problem can be particularly frustrating, as it does not occur when running the app straight from Android Studio, but instead manifests when generating a debug APK via the command line. Understanding the Issue The problem at hand is encapsulated by the error message: java.lang.NoSuchMethodError: No static method slideIntoContainer(...) in class androidx.compose.animation.AnimatedContentTransitionScope. This error typically indicates that the compiler is unable to find a specific method at r…  ( 4 min )

"If you can't explain something to a first-year student, then you haven't really understood." —Richard Feynman This is one of my favorite quotes. It touches on something I see in the best engineers I've ever worked with, and something missing from many others. Something that's frustratingly illusive in the world of software engineering. A principle valued by most everyone, but executed by few. What is this trait possessed by the very best in our industry, you ask? What is it that great engineers do that sets them apart from the rest? Great engineers build complex systems by writing simple code. Let's cut to the chase: if you're writing code that takes your colleagues 20 minutes, two cups of coffee, and a string of "What the F%&#s" to understand, you're doing it wrong. Period. If you can't …  ( 5 min )

Some stats about a project are always interesting. There used to be an IntelliJ plugin offering exactly that, but unfortunately, it seems like it is not actively maintained any longer. A quick and elegant solution on Macs and Linux devices is running the following command from your project root: find . -name '*.' | xargs wc -l  ( 2 min )

mA fast, searchable knowledge base doesn’t need a database or heavy frameworks. In this guide, we’ll show how to add client-side search to your static Markdown-based system using JavaScript and Tailwind CSS — no backend required. ✅ Instant results ✅ Works offline ✅ No server dependencies This method is ideal for lightweight documentation or personal knowledge bases hosted on platforms like GitHub Pages or Netlify. Organize your .md files inside a docs/ directory. Example: docs/ ├── getting-started.md ├── installation.md ├── faq.md └── features.md Each file should begin with a clear heading and meaningful content for best results. Create a JSON index of your docs (manually or with a build tool). Here's a simple example: const docsIndex = [ { title: "Getting Started", path: "docs/gettin…  ( 4 min )

I’ve compiled 50 key questions and answers as a technical interview prep guide for senior data scientists in the field of generative AI. Describe the main components of the Transformer architecture and explain how they overcome the limitations of RNNs/LSTMs. Transformers overcome the parallel processing limitations and difficulty in capturing long-range dependencies of RNNs/LSTMs, which rely on sequential processing, through the self-attention mechanism. Self-attention simultaneously calculates the relationships between all token pairs in a sequence, enabling parallel processing and helping each token understand the context by utilizing information from the entire sequence. The main components are: Self-Attention: Each token assesses its relevance to all other tokens in the sequence, effe…  ( 50 min )

Example1: package While; public class Police { public static void main(String[] args) { int police=0; int thief=40; while(police=3) { wrapper= wrapper-3; choco=choco+1; wrapper=wrapper+1; } System.out.println(choco); } } Output: 22  ( 2 min )

Figma-Context-MCP in Practice: A New AI-Powered Experience from Design to Code Collaboration between designers and developers is being revolutionized by AI and new protocols. This article will help you easily understand Figma-Context-MCP, show you step-by-step how to use Cursor with Figma-Context-MCP to automate turning designs into code, and compare the unique advantages of Codia AI Code Generator for high-fidelity code generation. What is Figma-Context-MCP? Core Value of Figma-Context-MCP Hands-on: Reproducing Designs with Cursor and Figma-Context-MCP Figma-Context-MCP vs. Codia AI Code Generator FAQ Conclusion & Call to Action Figma-Context-MCP (Model Context Protocol) is an open-source project created by Graham Lipsman, not an official Figma product. It's an MCP server that allows A…  ( 6 min )

Article by Tamer AlDeeB – EQCPA - 17 March 2024 info@eqcpa.com ✨ In Short: Tourism isn’t just about selling experiences — it’s about managing trust and protecting value. A dedicated audit firm acts not merely as a checker but as a business guardian — enhancing controls, improving profitability, and building a sustainable growth platform. Secure your future, protect your guests, and unlock new opportunities — all starting with the right audit partner.  ( 4 min )

Hey guys, Michael here! Today I decided to learn more about Vue.js and, after a few hours of coding, I built a task manager with everything very basic (and a little more): Complete CRUD, dynamic filters and native Vue animations! It was interesting to discover how the Vue structure makes everything more organized – and the transitions are very simple to implement. Has anyone else done anything like this? What tips, books or best practices do you recommend for those who are starting out? Project link https://app-vue-todo.vercel.app/ obs: the project is in portuguese.  ( 3 min )

When your data grows beyond a toy example, pprint starts to break. You see cut-off arrays. Flattened hierarchies. Lost context. And worst of all? Hidden bugs buried under “pretty” formatting. That’s why I created SetPrint — a Python library that shows structure, not just values. ✅ Side-by-side comparisons: pprint / setprint ✅ Real-world examples: image data, confusion matrices ✅ Benchmarks + 5 must-know tips for structured debugging Want to see it in action? Try this demo notebook — no install needed. (To use Colab, a Google account is required.) Google Colab 1. Visual Comparison — pprint vs setprint data = { "users": [ {"name": "Alice", "scores": np.array([95, 88, 76])}, {"name": "Bob", "scores": np.array([72, 85, 90])} ], "meta": {"c…  ( 5 min )

The world of AI tools is evolving rapidly, and Google AI Studio is no exception! It recently received some exciting updates, including a refreshed interface and powerful new features. In my latest video, I dive into what's new, covering: The redesigned UI The powerful "Compare Mode" for testing models side-by-side Hands-on demo of the new Veo 2 video generation capabilities Want to see these updates in action and learn how to use them? Watch the full walkthrough here: Watch on YouTube: New Google AI Studio  ( 3 min )

Asynchronous JavaScript can be tricky to grasp, especially for beginners. Concepts like Promises, Async/Await, and the fetch API often seem abstract — until you build something real with them. In my latest YouTube video, I break down asynchronous JS in the simplest way possible and walk you through how to use it in a real-world project. And what better way to learn than by building something fun… like a Pokémon Fetch App! 📌 What You'll Learn ✅ The difference between Promises and Async/Await ✅ How to use try...catch and finally for error handling ✅ Making real API requests with the fetch() method ✅ Applying everything by building a Pokémon project 00:00 – Introduction: What is Asynchronous JavaScript? 01:10 – Promises, Async/Await, try…catch, then…catch…finally 06:30 – API - Fetch 10:39 – Pokémon Project (Hands-on section) If you're learning frontend development or JavaScript, mastering asynchronous code is non-negotiable. Whether you're handling user interactions, loading data from an API, or building full-stack apps — you need these concepts in your toolkit. This video blends theory and practice, so you'll understand the "why" and "how" behind the code — not just copy-paste your way through. In the final part of the video, you'll build a simple app that fetches Pokémon data from a public API. You’ll apply everything you’ve learned and see how it all works together. Don't just read about async JavaScript — build it. 👉 Click here to watch the full video If you find the video helpful, please consider: Liking 👍 Subscribing 🔔 Sharing it with friends or dev communities 💬 🏷️ Tags JavaScript #AsyncAwait #Promises #WebDevelopment #Frontend #FetchAPI #LearnToCode #JavaScriptProject #CodingTutorial #PokémonAPI  ( 4 min )

Introduction When working with Svelte and TypeScript, you might run into challenges regarding event typing. A common scenario involves handling input events from an element and wanting to replace the generic any type with a more specific InputEvent. This article will explore how to accurately type the input event in Svelte using TypeScript, allowing you to harness the benefits of type checking while eliminating the use of any. Understanding the Issue You are currently using an input handler function that looks like this: function emitChange(event: any) { const text = event.target.value; dispatch("changeContent", { text }); } While this function works, it relies on the any type, which defeats the purpose of using TypeScript. In your attempt to switch to InputEvent, you enco…  ( 4 min )

Choosing the right packaging material for your product is more than just a design or cost decision—it's a reflection of your brand's values, product needs, and customer expectations. For many businesses, the choice often comes down to two of the most common materials: plastic or paper. Both have their pros and cons, and neither is universally better in every situation. In this blog, we’ll explore the key factors you should consider when deciding between plastic and paper packaging, especially as sustainability and consumer awareness continue to shape the packaging industry. As global concerns about climate change and plastic pollution grow, businesses are under increasing pressure to adopt sustainable packaging solutions. Consumers are now more informed and are actively seeking products wi…  ( 5 min )

Panier is a system built for small business with features including Point of Sale, Invoices, Credit Notes, Debit Notes, Delivery Notes, Quotations, Multi-Currency, Stock Management, Profit and Loss and much more. Panier also includes the ability to ZIMRA Fiscalize and extends this ability to the Panier API allowing you to integrate with it from your project. In this article we will show you how you can integrate your project with ZIMRA's FDMS through the Panier API. First you need to register an account on Panier and create a company if you don't already have one. You will get a 14 day FREE trial when you register, after which you will have to pay a US$19.99 monthly subscription for each company that you have. Next navigate to the Developer API page of your company and generate the API Cre…  ( 9 min )

LDAP is a pretty known and widely used protocol in the world of IT, although it is not as comfortable to use as OAuth or OpenID Connect. Nevertheless, you can still often encounter enterprises that need to use it, therefore it is worth to gain some experience with it. In this article, I will show you how to set up a website on Nginx that is protected by Active Directory or LDAP authentication. If you have your own spare domain, you are even luckier because you can also use SSL from Let's Encrypt to make the connection secure (see last section)! The code for the complete project is available on GitHub: https://github.com/ppabis/nginx-ldap-simplead In order to use LDAP with Nginx, we obviously need a directory where our users will reside. For this purpose, I will use AWS Simple AD, as it is …  ( 15 min )

In the final part of the scripting series, we will be a looking at a real world example of a system health script you can run in your production environment. This type of script is a powerful tool for both new and seasoned Linux users, offering a quick and automated snapshot of a system's health. It combines key administrative tasks - like checking uptime, disk usage, system load, user activity, and log data - into a single, readable report. Whether you're a student learning Bash, a sysadmin managing servers, or a DevOps engineer monitoring resources, this script saves time, reduces manual effort, and builds a habit of proactive system checks. It’s not just a script - it’s a hands-on learning experience and a real-world productivity booster. Create the script in VIM. Write the script …  ( 5 min )

If you’re diving into DevOps, sooner or later you’ll find yourself working with cloud infrastructure. And when it comes to enterprises, Azure is one of the biggest players in the game. But for many newcomers, Azure can feel like a maze of services, menus, and jargon. This post breaks down how to get started with Azure practically — with just enough context to understand what's happening, and a CLI-driven walkthrough to create your first resource group. At its core, Microsoft Azure is a cloud computing platform that offers: On-demand access to computing, storage, networking, and AI services A pay-as-you-go model Massive global scale Whether you’re hosting a web app, spinning up Kubernetes clusters, or building a DevOps pipeline — Azure has a service for it. Before we dive in, let’s get clea…  ( 4 min )

In case you missed the quiet launch of our timescaledb-ruby gem, we’re here to remind you that you can now connect PostgreSQL and Ruby when using TimescaleDB. 🎉 This integration delivers a deeply integrated experience that will feel natural to Ruby and Rails developers. If you’ve worked with Rails for any length of time, you’ve probably hit the wall when dealing with time-series data. I know I did. Your app starts off smooth—collecting metrics, logging events, tracking usage. But one day, your dashboards start lagging. Page load times creep past 10 seconds. Pagination stops helping. Background jobs queue up as yesterday’s data takes too long to process. This isn’t a Rails problem. Or even a PostgreSQL problem. It’s a “using the wrong tool for the job” problem. In this post, I’ll show you…  ( 6 min )

Functions are the heart of any programming language, and in TypeScript, they become even more powerful with type safety. In my latest video, I walk you through how to write and use functions in TypeScript. Whether you're transitioning from JavaScript or just getting started with TS, this tutorial is designed to help you build a solid foundation. 📺 Watch the full tutorial on YouTube: 🚀 What You'll Learn: ✅ Declaring functions with TypeScript ✅ Arrow functions vs traditional functions ✅ Typing function parameters and return values ✅ Optional and default parameters ✅ Clean code and best practices JavaScript is flexible — sometimes too flexible. TypeScript introduces structure by enforcing types, reducing bugs and making your code easier to understand and maintain. With TypeScript, functions can clearly define: What kind of arguments they accept What type of result they return Whether certain parameters are required or optional Here’s a quick example: function greet(name: string = "Dev"): string { return `Hello, ${name}!`; } ` This function: Takes a name parameter of type string Has a default value ("Dev") Returns a string And TypeScript will enforce all of that at compile-time! Real-life function examples Why arrow functions behave differently (especially with this) Tips for writing scalable functions in a TypeScript project `txt ` This video is part of my ongoing TypeScript series. If you're serious about becoming a better web developer, learning TypeScript is non-negotiable. Let me know what you'd like to learn next — and don’t forget to like, share, and subscribe if you find the video helpful! 📌 Watch the video now ✍️ Samson Njoku YouTube • LinkedIn • GitHub  ( 4 min )

Hey devs! React’s component-based architecture pairs seamlessly with Tailwind’s utility-first CSS framework, enabling rapid development without sacrificing quality. This combo shines in large-scale projects where consistency, performance, and maintainability are critical. Key Benefits: Efficiency: Style directly in JSX, eliminating context-switching to separate CSS files. 📱 Responsive Design: Built-in responsive utilities (sm:, md:, lg:) simplify adaptive layouts. Reusability: Encourages modular, reusable components for UI and styling. Maintainability: Tailwind’s purge feature ensures lean production CSS. We’ll use Vite for a lightweight, fast build tool and configure Tailwind with a scalable structure. 1. Initialize the Project npm create vite@latest tailwind-app -- --template react c…  ( 5 min )

EXAMPLE1: package While; public class Factorial { public static void main(String[] args) { int factorial =1; int no =6; while (no>=1) { factorial =factorial*no; no=no-1; } System.out.println(factorial); } } Output: EXAMPLE2: package While; public class Choco { public static void main(String[] args) { int choco =1; int part = 5; while (part>0) { choco =choco *2; part =part-1; System.out.println(choco); } } } Output: EXAMPLE3: package While; public class Choco2 { public static void main(String[] args) { int choco =128; int kids_count=0; while (choco>1) { choco=choco/2; kids_count =kids_count+1; } System.out.println(kids_count); } } OUTPUT: EXAMPLE4: package While; public class Ft { public static void main(String[] args) { float total_fit=30; int up=2; float down=1.5f; int day=1; while(total_fit>1) { total_fit=(total_fit-up+down); day=day+1; } System.out.println(day); } } OUTPUT: 59  ( 3 min )

Hello everyone, I have put the Lynx project on hold because I am currently busy with another project. Although Lynx is a solid framework, I cannot develop two projects at the same time by myself. Since I no longer have time to continue the development of Lynx, I am thinking of offering it for sale. If you represent a company, I would be happy to join your Lynx team if needed. Lynx already has a solid foundation with an ORM and a CLI. The CLI is written in Rust and the ORM is natively integrated into Lynx. I will share code samples related to Lynx with serious buyers. Contact me: Instagram: Signor P Discord (and other platforms): _signor_p_  ( 3 min )

What if PCB failures weren’t a setback, but a step forward? With AI technology, defective boards are now valuable learning tools that help engineers improve future designs. By analyzing these failures, AI is helping create more reliable and efficient PCBs. Ready to see how AI is reshaping the PCB industry? Keep reading to find out. *1. AI's Role in Analyzing PCB Failures: AI systems are now being employed to analyze defective PCBs, identifying patterns and anomalies that might be overlooked by human inspectors. By processing vast amounts of data from failed boards, AI can pinpoint specific issues such as: 1. Soldering defects: Identifying cold joints or insufficient solder. 2. Component misplacement: Detecting components that are out of alignment. 3. Trace issues: Spotting broken or short…  ( 4 min )

Self-Hosting Your Way to Cost Savings: Replacing Prisma Accelerate with Redis and Twemproxy By replacing Prisma Accelerate ($60/month) with a self-hosted Redis caching solution using Twemproxy, we maintained query performance while essentially reducing our database caching costs to zero. The solution works reliably in serverless environments and integrates seamlessly with our multi-tenant architecture. Serverless applications need efficient database strategies for good performance, but managed services can get expensive as you scale. When our Prisma Accelerate bill hit nearly $60 last month—approaching the cost of our entire EC2 instance—we knew we needed an alternative. Prisma Accelerate provides excellent connection pooling and caching for serverless environments, but the pricing becam…  ( 6 min )

This is where Data Flow Manager by Ksolves steps in—a robust UI-driven tool designed to automate the promotion and deployment of NiFi data flows while drastically minimizing manual effort and errors. Before diving into the solution, it’s crucial to understand the limitations of traditional, manual NiFi flow deployment: Human Errors: Copy-paste mistakes, missing components, or incorrect parameter settings are common in manual deployments. Versioning Conflicts: Developers often work on different versions of a data flow, making it difficult to track or reconcile changes. Environment Mismatches: Development, Staging, and Production environments may have different configurations. Manual NiFi data flow deployment makes it easy to overlook such nuances. Lack of Auditability: Manual processes offe…  ( 4 min )

As a Docker Captain and Co-Founder of a Docker hosting company, I've seen a lot of people struggle and make mistakes with Docker. Most developers "learn" Docker by copy-pasting a Dockerfile from Stack Overflow and calling it a day. But if you want to really understand containers, their limits, their quirks, and how to bend them to your will, you need to play. Here are 5 hands-on projects that will help you level up your Docker skills fast. Are they something you will use day-to-day? No. Are they something that will save your butt in a very weird situation in 5 years time? Maybe, or at least thats what I hope for :D You already have a project. Maybe it is a Next.js frontend or a Flask API. Here is your challenge: strip the image down as far as it can possibly go. Do not just change the bas…  ( 5 min )

RDMA(Remote Direct Memory Access)는 네트워크를 통해 서버 간에 CPU 개입 없이 메모리를 직접 읽고 쓰는 기술이다. 주로 고성능 컴퓨팅(HPC), 대규모 데이터 처리, AI/ML 분산 학습 환경 등에서 낮은 지연 시간과 높은 대역폭을 제공하기 때문에 많이 사용한다. 1. RDMA의 기본 개념 일반적인 네트워크 통신 방식에서는 데이터를 전송하려면 CPU가 메모리에서 데이터를 읽고, 네트워크 인터페이스 카드(NIC)로 복사한다. 이 복사한 데이터를 네트워크를 통해 데이터를 보내고, 수신 측에서도 CPU가 데이터를 NIC에서 메모리로 복사한다. 이 과정에서 CPU, 커널, 복사 작업 등이 개입되어 지연(latency)과 CPU 오버헤드가 큰 현상이 발생한다. 반면, RDMA는, CPU나 운영체제(OS) 커널의 개입 없이, 원격 시스템의 메모리에 직접 읽기(read) 또는 쓰기(write) 작업을 수행한다. 다시 말해, 데이터가 직접 메모리에서 메모리로 이동한다. 2. RDMA가 동작하는 방식 (1) 메모리 등록 (Memory Registration) 송신자와 수신자 모두 RDMA NIC(HCA: Host Channel Adapter)를 사용함. RDMA를 사용하기 위해서는 사용할 메모리 영역을 등록(pinning)해야 함. 이 과정에서 해당 메모리는 물리 메모리에 고정되고 커널이 RDMA NIC에 메모리 주소를 알려줌. (2) Queue Pair 생성 RDMA 통신은 QP(Queue Pair)라는 구조를 통해 이루어짐. QP는 Send Queue와 Receive Queue로 구성…  ( 4 min )

If you haven't already, I would recommend having a quick look at the Introduction & Sequence Diagram Welcome to the 3-part series that helps you create a scalable production-ready authentication system using pure JWT & a middleware for your SvelteKit project Part 1 → Setup & JWT Basics Part 2 → Authentication Flows Part 3 → Protecting Routes & Security You are reading Part 3 Goal: Secure the app with middleware and discuss best practices for a production-ready system. Topics we'll cover Server Hooks (Middleware): Use SvelteKit hooks to verify JWT and secure routes. Security Considerations: Token storage (HTTP-only cookies), CSRF protection, token expiration, HTTPS, etc. Conclusion & Next Steps: Recap and suggestions like refresh tokens or role-based access. Now we'll implement the authenti…  ( 4 min )

Safeguarding your domain against email spoofing and phishing threats is crucial, and DMARC (Domain-based Message Authentication, Reporting, and Conformance) is essential for this protection. However, understanding DMARC reports can be challenging, particularly when problems occur. This guide outlines the typical issues found in DMARC reports and provides solutions to address them. DMARC is a protocol for email verification that enhances SPF and DKIM, enabling domain owners to instruct receiving servers on how to process emails that do not pass these authentication tests. Additionally, it offers reports that indicate the proper or improper use of emails, aiding in the detection of spoofing attempts, mistakes, or unauthorized senders. To effectively interpret and respond to these reports, on…  ( 6 min )

Introduction TryHackMe's Brains room is a cybersecurity challenge that focuses on exploiting an authentication bypass vulnerability in TeamCity (CVE-2024-27198). This walkthrough will guide you through the attacker's perspective, where we gain access to the system, and the defender's perspective, where we analyze logs to track the attack. Step 1: Initial Reconnaissance Before diving into exploitation, we need to gather information about the target system. Running an Nmap Scan Start by scanning the target machine to identify open ports and services, i used the following code: nmap -A -sV -sS 10.10.155.253(YOUR_MACHINEIP) -T4 but you can have the same results as shown with this: nmap -A -T4 -p- 10.10.155.253(YOUR_MACHINEIP) Scan Results: Let's dig further, so open the Firefox browser an…  ( 6 min )

In today’s rapidly evolving digital landscape, Web3 is emerging as a transformative force, gradually reshaping the way we interact with the internet. But what exactly is Web3, and how does it differ from Web2? Let’s dive deep into this new era of decentralized technology and explore its impact on industries, users, developers, and startups. What is Web3 and How Does it Differ from Web2? The fundamental difference between Web2 and Web3 is the concept of decentralization. While Web2 relies on intermediaries to mediate transactions and data exchanges, Web3 removes these intermediaries by allowing users to interact directly with one another via peer-to-peer networks. Advantages of Web3 for Users and Developers Decentralized Data Ownership: Peer-to-Peer Services: Elimination of Intermediari…  ( 5 min )

Introduction If you're encountering the error message FirebaseError: Firebase: No Firebase App '[DEFAULT]' has been created, don't worry! This is a common issue for many Flutter developers integrating Firebase into their applications. In this article, we will dive into understanding why this error occurs and how to resolve it effectively as you develop your Flutter web application using Firebase. Understanding the Firebase Initialization Error The error 'No Firebase App '[DEFAULT]' has been created' typically arises when your Firebase app has not been initialized before attempting to use it. The Firebase SDK requires that the app be initialized with your specific Firebase configuration to communicate correctly with your Firebase backend services, such as Firestore, Authentication, and more…  ( 4 min )

If you haven't already, I would recommend having a quick look at the Introduction & Sequence Diagram Welcome to the 3-part series that helps you create a scalable production-ready authentication system using pure JWT & a middleware for your SvelteKit project Part 1: Setup & JWT Basics Part 2: Authentication Flows Part 3: Protecting Routes & Security You are reading Part 2 Goal: Implement user authentication flows using JWT, covering sign-up, sign-in, and logout Topics we'll cover Sign-Up Flow: Server-side endpoint to register users and issue JWT, with a Svelte form. Sign-In Flow: Server-side endpoint to authenticate users and issue JWT, with a Svelte form. Logout Flow: Server-side endpoint to clear cookies, with a simple UI. Note: All form validations are happening server-side, as it shoul…  ( 8 min )

GCP Persistent Disks Compared: Balanced, Extreme, SSD, and Standard Explained Overview: Balanced Persistent Disk (pd-balanced) They are zonal or regional, ensuring high availability and durability. Key Features When to Use Each Venkat C S  ( 3 min )

Dive into the diverse landscape of Linux distributions. Understand their unique features, use cases, and how to choose the right one for your needs. Understanding Linux Distributions Linux distribution is a complete operating system built around the Linux kernel. It includes system software, libraries, and often a package management system. Distributions can be community-driven or commercially backed, each bringing its unique flavor to the Linux ecosystem.​ Major Linux Distributions and Their Use Cases Ubuntu Overview: Developed by Canonical Ltd., Ubuntu is based on Debian and is known for its user-friendliness.​ Use Cases: Ideal for beginners, desktops, servers, and cloud deployments.​ Variants: Includes Kubuntu (KDE desktop), Xubuntu (XFCE desktop), and Ubuntu Server.​ Debian Overview: A…  ( 5 min )

In the world of computer science, data is at the core of every application. From a simple calculator app to a complex search engine, how data is stored, managed, and accessed can significantly impact performance. That’s where data structures come in. If you’re new to programming or looking to strengthen your foundation, this Data Structures Tutorial will serve as a beginner’s guide to mastering the basics. Before diving deeper, it’s important to answer the question: what is data structure? At its simplest, a data structure is a method of organizing and storing data in a computer so that it can be used efficiently. Think of it like the different types of containers you might use in your kitchen—jars, boxes, baskets. Each is suited for storing certain types of items, and choosing the right …  ( 5 min )

https://docs.aws.amazon.com/eks/latest/userguide/update-cluster.html export CLUSTER= kubectl describe daemonset aws-node --namespace kube-system | grep amazon-k8s-cni: | cut -d : -f 3 Deve ser >= 1.8.0 kubectl get daemonset aws-node -n kube-system -o yaml > aws-k8s-cni-old.yaml eksctl create iamserviceaccount \ aws eks create-addon \ eksctl get addon --name vpc-cni --cluster $CLUSTER aws eks update-addon \ kubectl describe deployment coredns --namespace kube-system | grep coredns: | cut -d : -f 3 kubectl get deployment coredns -n kube-system -o yaml > aws-k8s-coredns-old.yaml aws eks create-addon \ eksctl get addon --name coredns --cluster $CLUSTER aws eks update-addon \ kubectl describe daemonset kube-proxy -n kube-system | grep kube-proxy: | cut -d : -f 3 Deve ser max 2 versões para tras kubectl get daemonset kube-proxy -n kube-system -o yaml > aws-k8s-kube-proxy-old.yaml aws eks create-addon \ eksctl get addon --name kube-proxy --cluster $CLUSTER Atualizar apos upgrade do eks aws eks update-addon \ kubectl describe deployment -n kube-system aws-load-balancer-controller | grep aws-alb-ingress-controller: | cut -d : -f 3 kubectl get deployment -n kube-system aws-load-balancer-controller -o yaml > aws-k8s-aws-alb-ingress-controller-old.yaml kubectl set image deployment/aws-load-balancer-controller -n kube-system controller=public.ecr.aws/eks/aws-load-balancer-controller:v2.4.7 k get pod -n kube-system | grep aws-load-balancer-controller  ( 3 min )

Introduction In the current landscape of new product development, the primary risk lies in the product's ability to gain a market fit rather than technological advancements. Entrepreneurs and investors have limited resources, including time and funding, to ensure the success of their products. To minimize waste, it is crucial to prioritize investment in strategies that address the most critical risks. Venture Capital (VC) evaluates potential startups with various methods, predominantly utilizing numerical indicators like engagement and revenue quality. However, for early-stage startups that may lack these indicators or face misleading data, VCs must rely on a blended approach of qualitative and quantitative proxies to understand the progress and direction of the product. The software tes…  ( 8 min )

Cloud deployment is no longer just a “DevOps” thing. Whether you're a solo developer shipping side projects or part of a startup team launching weekly updates, smoother deployments mean faster feedback, fewer bugs, and less stress. But between setting up CI/CD pipelines, configuring environments, and managing infrastructure, cloud deployment can easily become a time sink. So what tools actually help streamline the cloud deployment process in 2025? Let's break it down, developer-to-developer. Before jumping into tools, let’s talk real-world benefits. When your deployment workflow is smooth: You save time (and sanity) You reduce the risk of breaking production You get faster feedback from users You can focus more on building, less on babysitting servers Whether you’re shipping a side projec…  ( 5 min )

In today’s digital-first world, nonprofits and charitable organizations are increasingly embracing technology to enhance their impact. One of the most powerful tools in this transformation is a mobile app. From improving outreach to streamlining donation processes, mobile apps offer nonprofits a scalable and efficient way to serve communities and drive their mission forward. Nonprofits often operate with limited resources but big ambitions. A well-designed mobile app helps bridge that gap by enabling: Real-Time Engagement: Stay connected with volunteers, donors, and beneficiaries with instant updates, event notifications, and push messages. Simplified Donations: Mobile apps make it easier for supporters to contribute, with secure payment gateways and recurring donation options. Data-Dr…  ( 3 min )

Are you looking for a simple way to convert seconds into a 'Hour:Minute:Second' format using PHP? It's a common task, particularly when working with time durations in applications. In this guide, we'll explore how to efficiently perform this conversion with a straightforward approach and clear code examples. Understanding the Conversion Process When you have a number of seconds, the goal is to break it down into hours, minutes, and remaining seconds. For example, converting '685' seconds into '00:11:25' involves: Calculating Hours: By dividing the total seconds by 3600 (the number of seconds in an hour). Calculating Remaining Minutes: By taking the remaining seconds after accounting for hours and dividing by 60. Calculating Remaining Seconds: By taking the remainder from the minutes calcul…  ( 4 min )

Fuelled by Investment, Driven by Security Now that we’ve gotten a solid grip on the Catalysis Ecosystem, it’s time to zoom out and see how it’s making waves in the real world. Catalysis, a project that’s helping make blockchains more secure, just raised $1.25 million to create a new kind of security system. This new system will help make it easier for developers to keep their blockchain networks safe by sharing security across different platforms. Think of it like a special tool that helps everyone stay protected in the world of blockchains. The money was raised from some big names, like Hashed Emergent, which helps Web3 projects in Asia, and others like Presto Labs, SpaceshipDAO, and Cosmostation. These investors are excited about Catalysis because they believe the project can really h…  ( 4 min )

The Scraper: The Collector of Car Parts Each day, the Scraper ventured out, gathering essential tools—brake pads, spark plugs, and oil filters—meticulously putting them in his storage room. This storage room, filled with parts, was like a database, organizing all the precious data he gathered from various sources. For instance, one day, the Scraper found a batch of brake pads. He cataloged the details, from brand to condition, and stored it safely. This was like collecting the latest prices from websites, storing them in a file for future use. The Backend Guy: The Toolbox Handler Whenever the mechanic—the Frontend—needed a specific tool, they would call out, “I need a 10mm wrench!” The Backend Guy, standing by the toolbox, would find the correct tool and hand it over with precision. He didn't fix the car himself, but he made sure the mechanic had exactly what was needed at the right time. Just like that, the Backend Guy managed the storage of all the data and ensured it was always ready when the Frontend needed it. When the mechanic asked for the current price of the Euro in Toman, the Backend would retrieve that data and send it in a neat package—a JSON response—ready to be used. The Frontend Mechanic: The User Interface When the mechanic needed a part, they'd shout, "I need a 10mm wrench!" The Backend Guy would respond, handing over the tool, and the Frontend Mechanic would get to work. The mechanic didn’t care how the part got there, as long as it was the right one. In the same way, the Frontend Mechanic used the data provided by the Backend to create an amazing display for the car's dashboard. They made sure the car (or website) looked stunning, with neatly organized parts (like the prices) and a smooth-running engine (user interface). Whether it was showing prices in a nice table or providing a simple, user-friendly experience, the Frontend Mechanic made sure everything was visually appealing and functional.  ( 4 min )

Cash in on Creativity: Unleash and Monetize Your Talents in the Digital Era In an era where digital platforms dominate the scene, creativity is not just an innate skill; it's a commodity you can leverage to generate income. Never before has it been so attainable to transform your talents into a revenue stream. Whether you're an artist, writer, musician, or designer, opportunities to monetize your creativity have never been greater. Let’s dive into how you can cash in on your unique talents. The first step in monetizing your creative passion is identifying and understanding your skills. What do you love to do? What do people often compliment you on? Whether it's painting, composing music, or crafting engaging stories, recognizing your talent is crucial. Digital platforms provide creative …  ( 4 min )

Infrastructure as Code (IaC) has come a long way since its beginnings. What started as spinning up cloud resources has now grown into a full-blown ecosystem with a very engaged community. IaC on its own can add a lot of complexity to your processes and cause more issues, but combined with governance, compliance, security, deployment strategies, self-service, it easily becomes the fuel your delivery engine needs. This year, IaCConf debuts as a virtual event by bringing together this community, and it’s shaping up to be one of the most relevant and practical events in the space. Unlike broader DevOps/SRE or cloud-native events, IACConf is focused on the challenges and innovations around defining infrastructure as code. That means the content goes deeper, the conversations are more relevant, and the takeaways are directly applicable to your processes. There will be sessions on: Getting started with IaC Managing IaC at scale across teams and environments (using OpenTofu, Terraform, Ansible, Crossplane, and others) Platform Engineering and IaC How IaC impacts your maturity AI in IaC And that’s just scratching the surface. Check out the full agenda here. One of the things I appreciate most about this conference is that it’s not about product pitches or high-level fluff. Practitioners share what worked, what broke, and how they improved. Whether you are just starting out, are in the trenches, or shaping platform strategy, there’s something for you here. On another note, I’m also excited to contribute to this year’s lineup with a session on Getting Started with IaC, together with my colleague Emin Alemdar. But honestly, I’m just as excited to learn and to connect with others working through the same challenges. The event will be on Thu, May 15, 2025 @ 11:00am EDT, so don’t forget to register here. This post was originally posted on Medium.  ( 3 min )

If you're diving into Ruby on Rails, understanding how to effectively use forms is crucial for creating interactive applications. In this article, we'll explore how to create a basic form in Ruby on Rails and pass data to a route using simple examples. You'll learn about the structure of a form and how to submit data securely, which is essential for any web application. Why Use Forms in Ruby on Rails? Forms are fundamental in web applications as they enable users to input data. Whether you're collecting user information, comments, or other types of data, forms serve as the primary interface for user interactions. In Ruby on Rails, handling forms is made simple with built-in helpers that streamline the process and ensure your application remains secure. Setting Up Your Rails Application Bef…  ( 5 min )

By a beginner, for beginners. When I first started learning Go (Golang), everything felt a little strange. Coming from the Python and JavaScript background😅😅., I expected to deal with new syntax, but I didn’t expect to get stuck on the very first line of every Go file: package main I remember asking myself: "Why do we declare the package name before the start of any code?" 📦 What Is a Package in Go? In Go, as well as other languages like Python, a package is a way to organize and reuse code. Every .go file must start by declaring which package it belongs to. There are two kinds of packages you’ll encounter early on: main: This package is special. It tells the Go compiler that this file is part of an executable program. Library packages: These are packages meant to be imported into othe…  ( 4 min )

Suppose you have a busy website where elements are constantly changing, buttons appear, text updates, new content sneaks in. You need a detective to watch all of this. Use MutationObserver, JavaScript’s Sherlock Holmes, who never misses a detail. Once something changes, the detective detects the change and decides what action to take. 💡 Example: Sherlock Holmes Investigates Price Updates 💰 Let’s say you have a shopping cart on your website, and the price of the cart updates whenever an item is added or removed. You need Sherlock Holmes (MutationObserver) to catch these updates and notify you. // Select the node that will be observed for mutations const cartPrice = document.getElementById("cart-price"); // Options for the observer (which mutations to observe) const config = { childList: …  ( 4 min )

Now you can connect to your remote development environments on Diploi using Cursor Diploi is deployment platform for applications with support for remote development Vibing on Diploi ✨ We just added support for Cursor, which means that now you can start coding your application without installing anything locally and vibe your way to production Don't want to read? Check the video demo If you prefer reading, let's go step by step: If you have a development environment already created, you can skip to step 2 You can launch the project creation page from your dashboard's project page https://console.diploi.com//projects Now choose the stack for your application. For this guide, I'll select Bun and Nue.js with Postgres for my demo app After clicking on Launch Stack,…  ( 4 min )

The Moving Average Convergence Divergence (MACD) indicator is often misinterpreted as a simple crossover tool. In reality, it offers a nuanced view of market momentum, trend health, and potential reversals—especially when analyzed over longer timeframes. This breakdown outlines how MACD identified major market movements on the BTC/USDT weekly chart using data-driven signals. Momentum Breakout – Early 2023 In early 2023, MACD moved above the signal line with an expanding histogram. This was not just a routine crossover; it indicated strong bullish momentum following BTC’s recovery from 2022 lows. What to monitor: A rising MACD histogram with increasing bar height Signal line separation confirming acceleration Insight: A rapidly expanding histogram often confirms a new sustained trend, no…  ( 4 min )

In today's digital world, cybersecurity isn't only for techies; it's essential for everyone. Whether you use a smartphone, a laptop, or a simple button phone, you are a possible target for hackers. This article outlines why everyone is vulnerable and provides practical steps to stay safe, tailored for a professional audience.  ( 2 min )

State management in React can sometimes feel like overkill. Whether you're reaching for Redux, Zustand, or Jotai, you might be introducing complexity when all you need is a minimal way to share state globally across components. That’s where @odemian/react-store shines — a tiny, typed, selector-based, and dependency-free global state library powered by useSyncExternalStore. In this article, we’ll walk through how to build a clean, performant Todo App using @odemian/react-store in just a few minutes. npm install @odemian/react-store Create a new file called stores/todoStore.ts: import { createStore } from "@odemian/react-store"; export type TTodo = { id: number; name: string; done: boolean; }; // Initialize the store with one task export const [useTodos, updateTodos] = createStore<T…  ( 4 min )

In Rust, understanding how std::mem::transmute functions between different types is crucial for ensuring memory safety and type integrity. This brings us to an interesting question: Is it safe to transmute between two custom struct types, OuterA and OuterB, which only differ by their inner types — InnerA and InnerB? Let's explore what the repr(transparent) conveys and clarify the implications of transmuting types in Rust. Understanding repr(transparent) The #[repr(transparent)] attribute in Rust is used to indicate that a struct represents a single variant of a type that can be safely treated as equivalent to its single field. This is particularly useful for effectively working with opaque types or for implementing newtype patterns. In the provided example, we have the following structur…  ( 4 min )

The digital realm, the backbone of our modern existence, hums with the constant flow of information, transactions, and communication. Yet, beneath this seemingly seamless surface lies a shadowy undercurrent of the world of system hacking. It’s a complex landscape of technical prowess, strategic thinking, and a constant battle between offense and defense. Understanding system hacking is no longer just for cybersecurity professionals; it’s becoming increasingly crucial for anyone navigating our interconnected world. But what exactly is system hacking? At its core, it refers to the unauthorized access and manipulation of computer systems, networks, or data. This can range from gaining unauthorized entry to a single computer to orchestrating sophisticated attacks on critical infrastructure. T…  ( 8 min )

Hello friends, I'm Yogesh Galav and currently working as Technical Product Manager at InstaWP, Recently I came across a problem of manually managing env file for multiple environments so I tried to came up with cost effective solution to it, I hope you read it with open mind. Like most of you at first I faced hurdle from my team mates of opposing dynamism or quick change culture, but after application was still running smoothly in develop/staging env I was able to gain their trust, hence looking forward to gain yours too. Some of you might have heard of solution to this problem like Infisical, Vault, AWS Parameter Store, Google Secret Manager but they involves cost in some form like money or work or maintenance. Let's now move directly to the point. Pros and Cons of ENV file management Pro…  ( 4 min )

Let's be real: with all the latest technologies and innovations, app building doesn't have to feel like building a house in 2025. With automation tools that just understand human language and commands, people are actually empowered to build an app/website of their own that is fully functional and I must say, quite unique. There are so many tools available that do the whole app building from A to Z for you. Yes, Builder.ai is a promising platform in the app development world because of its AI-driven simplicity. But what if you need more? More creative, more affordable, and more fit as per your requirements. Whether you are a small business owner or an enterprise, many other platforms are waiting for you that are just made for you and fit your requirements. And the cherry on the top is that …  ( 8 min )

Today, I want to share my experience using Cline (https://github.com/cline/cline) to manage an entire pull request (PR) without touching the code myself. I set the following rules for myself to complete the PR: The task I chose for the AI was a refactoring task to unify the implementation of mocking across the codebase, which varied by developer. I used the vanilla Cline VS Code extension. vscode-lm:copilot/gpt-4 vscode-lm:copilot/gpt-4o The codebase was an average Laravel application. The task was completed entirely through prompts. I wasn't sure if it was possible, but Cline made it. This was a different experience from Copilot, where once the prompt was written, the AI handled everything. Cline was able to handle various tasks beyond just reading and writing code. Here are some tasks I …  ( 6 min )

Let’s create a simple vertical tabs component using Tailwind CSS and JavaScript. Originally posted on: https://lexingtonthemes.com/tutorials/how-to-create-vertical-tabs-with-tailwind-css-and-javascript/ Why vertical though? Vertical tabs are a great way to organize content on a webpage. They are easy to navigate and can be used to display different sections of content in a single view. They are also a great way to save space on a page and make it more visually appealing.  ( 3 min )

Welcome to the next pikoTutorial ! A TCP server listens for incoming connections on a specified port and communicates with clients over that connection. from socket import socket, AF_INET, SOCK_STREAM from argparse import ArgumentParser # define command line interface parser = ArgumentParser() parser.add_argument('-ip', help='IP') parser.add_argument('-server_port', type=int, help='Server port') # parse command line options args = parser.parse_args() # create a TCP socket with socket(AF_INET, SOCK_STREAM) as server_socket: # bind server with a specific network address # which consists of IP and port number server_socket.bind((args.ip, args.server_port)) # start listening for requests server_socket.listen() print(f'TCP server up and listening on {args.ip}:{args.serve…  ( 4 min )

Looking for a free and effective Web Application Firewall (WAF) to protect your websites from attacks? Let me introduce you to SafeLine — a self-hosted, open-source WAF built by security experts at Chaitin Tech, designed specifically for the developer and security community. A Web Application Firewall (WAF) is a security layer that protects web applications from malicious traffic. It typically sits in front of the application as a reverse proxy, monitoring and filtering HTTP/HTTPS requests in real time. WAFs can block common attacks like: SQL Injection (SQLi) Cross-Site Scripting (XSS) Cross-Site Request Forgery (CSRF) Remote Code Execution (RCE) Business logic abuse Zero-day vulnerabilities App-specific exploits (e.g., WordPress, Joomla, Drupal) There are many WAF products out there — co…  ( 4 min )

Introduction When developing Angular applications, particularly with Angular Material, you might encounter issues regarding the mat-list and mat-divider components. Many developers wonder whether to use ngFor inside the mat-list or the mat-list-item and how to correctly place the mat-divider. Let’s delve into this topic to clarify which method is best. Why This Issue Arises The confusion around where to implement ngFor and the positioning of mat-divider often stems from how Angular handles component rendering. Using ngFor within the mat-list means that each item is rendered as part of the list itself; thus, the dividers are less likely to show correctly if their placement isn’t considered carefully. Conversely, applying ngFor to mat-list-item makes each list item independent and potentiall…  ( 4 min )

As technology continues to evolve at an unprecedented rate, few sectors remain untouched by its benefits. One domain witnessing significant evolution due to technological advancements is education. The recent surge in online learning platforms takes personalized learning to unprecedented horizons, largely due to the integration of AI (Artificial Intelligence). AI technology is transforming how students learn, how teachers teach, and fundamentally, making education more accessible and customized than ever before. The integration of AI in online learning platforms is revolutionizing the educational landscape by providing personalized feedback. The AI-driven systems analyze learners' performance, discern their strengths and weaknesses, and create customized, adaptive learning pathways, leavin…  ( 4 min )

If you've ever been involved in launching an AI chatbot, you know the pain: months of development followed by the seemingly endless purgatory of User Acceptance Testing (UAT). Your team creates brilliant conversational flows and integrations, only to watch your launch date slip further into the future as manual testers slowly work through scenarios. While companies focus heavily on selecting the right frameworks and models for their chatbots, they often underestimate what happens after development: the testing phase. According to recent surveys, nearly 90% of companies acknowledge they need stack upgrades to deploy AI agents—but even with those upgrades, manual UAT remains the silent killer of deployment timelines. Traditional software testing methodologies simply don't scale for conversat…  ( 4 min )

Are you planning to develop intelligent chatbots that require advanced understanding and interaction capabilities? Is your focus on enabling dynamic, complex research endeavors? Do you want to visualize or monitor asset flows and risks within your organization? Do you aim to unlock siloed data or enhance connectivity between disparate data environments? Knowledge graphs help structure information by capturing relationships between disparate data points. They allow users to integrate data from diverse sources and discover hidden patterns and connections.  ( 3 min )

A proxy firewall, often referred to as an application-layer or gateway firewall, acts as an intermediary between a user’s system and external servers. Instead of allowing direct communication, it processes and forwards requests on behalf of users. This not only hides internal network details from outsiders but also allows the firewall to thoroughly inspect data before it reaches its destination. Unlike traditional firewalls that operate primarily at the network or transport layer, proxy firewalls operate at the application layer. They intercept requests, evaluate the content, and relay approved traffic. This additional layer of inspection allows for more granular control, helping detect threats embedded in seemingly legitimate requests—such as malware hidden in web traffic or email attachm…  ( 4 min )

This is a submission for the Amazon Q Developer "Quack The Code" Challenge: Crushing the Command Line I created AI Medicine Analyzer, an intelligent web app that helps users analyze medications using the power of AI. It allows users to type in the name of any medicine and receive: A clear, structured breakdown of its uses, dosage, side effects, precautions, and interactions. AI-powered analysis in natural language, accessible to non-medical users. A dynamic, chat-like interface that feels intuitive and fast. The problem it solves: many patients struggle to understand complex medication instructions or identify drug interactions. This app simplifies that process using LLMs and brings trustworthy drug information to users' fingertips. Try the live app here: https://medilyze.netlify.app Here …  ( 4 min )

How can we understand the impact of hackers and hacktivists on global cybersecurity? In today’s interconnected world, cyber threats have evolved from simple pranks to sophisticated operations that can cripple organizations and even nations and really understanding who’s behind these attacks is crucial for proper defense. The digital landscape has become a battleground where diverse actors compete for information, influence, and financial gain. Threat intelligence has never been more vital for organizations seeking to protect their digital assets. Behind every breach and security incident stands a human or multiple humans with specific motivations, skills, and objectives. Recognizing these threat actor profiles allows security professionals to anticipate and counter attacks more effectively…  ( 7 min )

Abstract This post dives deep into open source developer crowdfunding, exploring how community-driven funding platforms empower innovation and ensure sustainability in the open source ecosystem. We cover the background, core concepts, practical applications, challenges, and future trends of this innovative approach. Key platforms such as Open Collective, GitHub Sponsors, and Patreon are highlighted, along with strategies to increase transparency and bolster developer motivation. Through tables, bullet lists, and detailed examples, this article provides a technical yet accessible overview that is optimized for both search engines and readers. Open source software (OSS) has revolutionized the way our digital world operates, offering a collaborative environment where developers and communit…  ( 8 min )

Introduction Many developers encounter challenges when adapting their workflow to the mobile-first approach in Tailwind CSS, especially those who prefer a desktop-first design methodology. While Tailwind CSS v3 made this easier through global configuration options, the introduction of Tailwind CSS v4 has made some of these features feel less intuitive. In this article, we will explore how to effectively configure Tailwind CSS v4 to achieve a desktop-first layout while maintaining responsive design principles. Understanding the Desktop-First Approach The desktop-first approach emphasizes designing for larger screens first, and then using media queries to adapt the design for smaller screens. This method allows developers to create a well-structured layout that looks good on large displays b…  ( 5 min )

CentOS 8 List any process listening to the given port: lsof -i:5000 kill 12345 Restart nginx server: service nginx restart Run python script in the background: nohup python3 /path/to/app.py & pip3 install -r /path/to/requirements.txt Search Files: Command + shift + F Copy line down: Shift + alt + Down arrow Shift + alt + Up arrow Delete line: Ctrl + shift + K Plugin: Prettier Shift + alt + F  ( 3 min )

국내 기업들을 방문해서 AI 인프라 관련 분들을 만나면, 가장 많이 물어보는 질문들 중 하나가 LLM 추론 시 메모리 크기는 얼마나 되는 것인 가이다. 아무래도내부에 가진 서버를 그대로 사용할 것인가? 아니면 신규로 서버를 구매할 것인가?에 대해 LLM을 동작 시킬 때 총 메모리 용량이 얼마나 되는 지 궁금해서 일 것이다. 예를 들어, meta-llama/Meta-Llama-3-8B-Instruct에서 훈련(Training) 또는 추론(Inference)할 때, Tensor Type으로 BF16 이면 메모리 크기는 얼마이며, 몇 장의 GPU를 사용해야 하는가에 대해 묻는다면, 어떻게 답변을 해야 하는지 알아 볼 것이다 메모리 사용량 개략적 계산 = (모델 파라미터 * 2) + 파라미터의 2 - 3배 BF16(bfloat16)은 FP16과 마찬가지로 16비트 정밀도를 사용하므로, 기본적으로 모델 파라미터*자체가 차지하는 메모리는 FP16 대비 큰 차이가 없음. AdamW 와 같은 옵티마이저 상태나 그래디언트, 중간 활성화 (activations) 등으로 인해 실제 요구되는 메모리는 2~3배 가량 될 수 있음. 계산식: (16 * 2) + (16GB * 2 or 16GB * 3) = 32GB + (32 or 48 )GB = 64 or 80 GB BF16 타입으로 풀 파인튜닝(Full fine-tuning)시 단일 GPU으로는 최소 40GB 이상, 안정적인 배치 크기 확보를 위해서는 A100/H100 80GB급이 1장이 권장 80GB H100 1장으로 분산 학습을 활용해도 충분히 학습이 가능함.…  ( 4 min )

Hello, I have an ambitious technical idea that I hope to share with the community of developers and cybersecurity specialists: Given the widespread prevalence of pornographic content online, and the difficulty of controlling it through traditional blocking or weak censorship tools, I've come up with a new system: 🔐 An "ethical operating system" (for smart devices – such as Android, iOS, and Windows) built from the ground up on the principle of: "Completely blocking any type of pornographic content, whether visual or textual, whether on websites, apps, search engines, or social networks." 💡 Key features of the idea: Its protection cannot be hacked or changed (such as the inability to install an alternative system). It can be installed on children's devices, school devices, or even the devices of adults who want to protect themselves. It doesn't rely solely on blocking a specific site, but rather on real-time content analysis. A clean app store and a clean built-in search engine. 🧱 Technically: Or as a distribution for children, schools, or conservative environments. Or even as a layer of security added to existing systems (e.g., Android). 🎯 The goal is not to impose censorship, but rather to provide a safe, ethical, and educational alternative. 🤝 I'm looking for: Interested programmers. Note that I'm only 16 years old. The goal is to find someone who will embrace this idea. Suggestions for improving the idea. Any technical or community support is possible. Do you think this type of system could make a real difference? opensource privacy cybersecurity idea  ( 3 min )

Developing code for an FPGA (like your DE1-SoC) involves several key steps that differ from traditional software development. Here's a comprehensive guide: 1. Design Phase a) Hardware Architecture Design Identify components needed: Data paths Control logic Memory interfaces I/O peripherals Consider clock domains and timing requirements b) Choose Your HDL Verilog: C-like syntax, popular in industry VHDL: Strongly typed, common in defense/aerospace SystemVerilog: Enhanced Verilog with verification features HLS (High-Level Synthesis): C/C++ to HDL (e.g., Intel HLS) 2. Coding Phase a) RTL Coding (Register Transfer Level) verilog module pwm_generator ( input clk, input reset, input [7:0] duty_cycle, output reg pwm_out ); reg [7:0] counter; always @(posedge clk or posed…  ( 4 min )

Kotlin vs Java: Which is Better for Android Development? Android development has evolved significantly over the years, and two programming languages dominate the ecosystem: Java (the traditional choice) and Kotlin (the modern alternative). If you're starting a new Android project or considering migrating an existing one, choosing between Kotlin and Java is a critical decision. In this article, we'll compare both languages in terms of performance, syntax, community support, and long-term viability to help you decide which is better for Android development. A Brief History of Java and Kotlin in Android Java: The Veteran Java has been the official language for Android development since the platform's inception in 2008. It’s a mature, object-oriented language with a vast ecosystem of libraries…  ( 4 min )

Introduction Are you facing an issue where WorkflowExecutionInfo.memo is empty even after successfully calling upsertMemo in your TypeScript application? This can be frustrating, especially after seeing the memo correctly set in your workflow execution output. Let’s dive into why this issue might occur and how to address it effectively. Understanding the Issue The main problem stems from the timing and lifecycle of updating the memo in your workflow executions. When you call the upsertMemo method, it is crucial to ensure that the memo is set correctly and acknowledged before you attempt to retrieve it from the workflow executions. In your code, the memo appears to be set successfully, as confirmed by the output of console.log. However, the memo is not persisted as expected when viewed thro…  ( 5 min )

Day 13: Today I am diving in viewcontrollers in #Xcode. Building functions for a todo app. Creating classes for the UI and functions to add tasks.  ( 3 min )

Abstract This post explores the concept of Open Source Capitalism in the Global South. We discuss how low-cost, collaborative models—empowered by blockchain and tokenized licensing models like the Open Compensation Token License (OCTL)—can foster local innovation, reduce dependency on expensive proprietary software, generate job opportunities, and promote community-driven sustainability. We also evaluate the unique challenges these regions face – from limited infrastructure and funding gaps to legal frameworks and digital divides – and propose strategies that include government support, innovative funding models, and localized education programs. Furthermore, we compare Open Source Capitalism with traditional paradigms using tables and bullet lists, and we provide insights and links from…  ( 9 min )

Due to the high salaries of web3 developers in the blockchain sector, many aspiring and seasoned web2 developers aim to learn web3 development. According to platforms like Web3 Careers, Senior Software Engineers with development experience in Solidity can earn a starting salary of $200,000 a year, and as remote-first work on dispersed teams is typical for many web3 firms, many developers find working in web3 to be an appealing career path. SOURCE: Remote Solidity Jobs – April 2025 (web3.career) With all the buzz surrounding blockchain technology and investments in web3 businesses, developers are left wondering how to get started learning web3 development and working in the web3 sector. Fear not fellow developers! In this article, we will explore a step-by-step guide on how to start learni…  ( 7 min )

Introduction: Can AI Really Talk to Animals? By studying how animals talk—even when surrounded by noise—AI might one day help humans "talk" to animals. This isn’t just fun; it can also help protect animals and learn more about the natural world. Let’s dive into the world of animals, AI, and city noise! Chapter 1: Birds chirp to call their friends or warn others about danger. Dolphins whistle and click to talk in the ocean. Dogs bark, growl, and wag their tails to show how they feel. Bees do a dance to show others where to find flowers. Even though these "languages" are not the same as human speech, they are still ways of sharing important messages. Scientists want to understand these messages better. That’s where AI comes in. *Chapter 2: * Voice assistants like Siri or Alexa Self-driving …  ( 7 min )

Daily Task Scheduler with AWS PartyRock: A No-Code GenAI Experience In today's fast-paced world, time management is key to productivity and personal well-being. Imagine having an AI assistant that builds your daily schedule with just a few inputs—no coding, no manual planning. This is exactly what I explored by building a Daily Task Scheduler using AWS PartyRock, a generative AI application builder that lets you prototype powerful apps in minutes without writing a single line of code. AWS PartyRock is a no-code platform that lets you build generative AI-powered applications with ease. It leverages foundational models from Amazon Bedrock to perform tasks like text generation, summarization, classification, and more. Developers and non-developers alike can build apps by simply dragging an…  ( 5 min )

흔히 IT 관련 미디어를 보면, 메타 라마가 오픈소스라고 많이 적혀져 있다. 물론 이것은 메타가 그렇게 주장하고 있지만, 정통 인공지능 개발자들 사이에서는 이러한 메타 라마가 오픈소스인가 아닌가에 대한 개념 논쟁이 많이 벌어졌다. 이게 무슨 말이냐고 하면, 100% 풀 오픈 소스냐? 아니면 가중치만 공개한 모델이냐? 에 대한 논쟁이다. 우리가 흔히 오픈소스(OpenSource)라고 하는 말은, 누구나 자유롭게 활용, 수정, 재배포할 수 있는 라이선스”라는 의미로 쓰인다. 실제로는 OSI(Open Source Initiative)가 공인한 라이선스인지, 아니면 사용 제한 조항(예: 비영리 사용만 가능 등)이 있는 “준(準)오픈소스” 형태인지를 구분해야 한다. 그렇다면, 이에 대해 한 번 알아보자! 현재 LLM 중에서 OSI가 승인한 오픈소스 라이선스는 다음과 같다. 종류: GPT-Neo 시리즈, GPT-J-6B**, GPT-NeoX-20B, Pythia 등 라이선스: 보통 Apache-2.0 또는 MIT (둘 다 OSI 승인) 특징 학습 코드와 모델 가중치를 공개 상업적 이용, 2차 재배포, 파생 모델 작성 모두 가능 라이선스: 보통 Apache-2.0 또는 MIT (둘 다 OSI 승인) 특징 “Base” 체크포인트는 완전한 오픈소스 단, “Instruct”나 “Storywriter” 버전은 상업적 이용/2차 저작 제한이 있는 별도 라이선스(MPL)를 적용하므로 주의 라이선스: CC-BY-SA-3.0 (또는 CC-BY-SA-4.0) 계열 + 모델 가중치에 대한 Databricks 에서 자체 공지 CC…  ( 4 min )

Converting wchar_t to UTF-8 may seem straightforward, but handling surrogate characters can complicate the process. In this article, we will delve into how wctomb works and explore alternative methods for converting surrogate characters to their UTF-8 equivalents. Understanding wctomb The wctomb function in C is designed to convert a wide character (of type wchar_t) to a multibyte character (typically in UTF-8 encoding). However, it has its limitations when it comes to surrogate pairs, which are a special way of encoding characters that are outside the Basic Multilingual Plane (BMP) in Unicode. These characters range from U+D800 to U+DFFF. When trying to convert these values using wctomb, you might encounter unexpected results. The Issue with Surrogate Characters Surrogate characters are…  ( 5 min )

Abstract: This post explores the evolution of OpenSea and the impact of open source licensing on digital marketplaces. We discuss the background of NFTs and blockchain technology, detail core concepts and features of open source licensing, and analyze practical applications and ethical considerations in marketplaces. We also provide use cases, challenges, and a future outlook focused on innovation, sustainability, and cross-platform collaboration. Intertwined with technical depth and accessible language, this post helps readers and developers understand how NFT platforms and open source technologies coexist and shape a decentralized digital economy. In recent years, digital marketplaces have undergone a revolutionary transformation thanks to blockchain technology and non-fungible tokens (…  ( 9 min )

In relational databases like MySQL, indexes are the foundation of efficient data retrieval. Among various indexing strategies, composite indexes — those spanning multiple columns — offer significant performance advantages when dealing with complex queries. This article takes a deep dive into the structure of composite indexes in MySQL, their search behavior, and the rationale behind the leftmost prefix rule. Composite Index Storage Structure As we’ve discussed earlier, let’s now refer to a previously mentioned Q&A example to explore today’s topic: the storage structure of composite indexes. In a user-submitted question about composite index storage structure, someone gave the following answer: Table T1: (a int primary key, b int, c int, d int, e varchar(20)) create index idx_t1_bcd on t1…  ( 6 min )

In the smoldering forges of Old Valyria, where currents roar like dragons and energy flows like wildfire, there sits a silent sovereign—the TWCT-T-D55. Forged in the fires of precision and crowned with 1% accuracy, this current transformer rules the Seven Realms of energy monitoring with the ruthlessness of Tywin Lannister and the cunning of Littlefinger. Let us bend the knee to the unyielding guardian of amps and volts. Chapter 1: The Forge of Dragonstone TWCT-T-D55 is no mere ironborn gadget. Cast in the Foundries of Valyrian Steel, it wields powers lost to lesser sensors: Dragonflame Precision: Measures 200A with 1% accuracy—sharper than Oathkeeper’s edge. Why it shatters the old order: Legacy CTs: Clumsy as Hodor, bumbling through phase shifts and kWh errors. Chapter 2: The War of Five Circuits The Battle of Blackwater Bay (Smart Factories): TWCTs stalk energy vampires like Arya’s List, slashing waste with Needle-like precision. “Chaos isn’t a pit. It’s a $15k savings,” they whisper. The Siege of Highgarden (Solar Farms): Guards solar arrays against hail storms and incompetence, steadfast as Brienne’s oath. “No panel left behind.” The Red Wedding (EV Chargers): Halts faulty chargers mid-zap, sparing Teslas from becoming Dothraki funeral pyres. “The North remembers… proper grounding.” The Words of House TWCT Size: Slimmer than a Braavosi blade (55mm), deadlier than a Dornish spear. The Dragons of Innovation The Dark Threats Beyond the Wall Legacy CTs: Bloat like Robert’s waistline, guzzling space and sanity. The Prophecy of the Prince That Was Measured The TWCT-T-D55 shall unite the grid.” Epilogue: Winter is Here (And It’s Electrified) References The Song of Silicon & Sparks (Maester Luwin’s Tech Scrolls) Fire & Wire: A History of Valyrian-Grade Sensors (Dragonstone Archives) A Clash of Currents (King’s Landing Energy Reports)  ( 4 min )

Fundamentals of Concurrency Concurrency: Managing multiple tasks simultaneously to improve responsiveness. Threads and asyncio operate on a single processor, switching tasks. Multiprocessing achieves true parallelism by using multiple CPU cores. Parallelism: Running tasks literally at the same time on different processors. Types of Tasks: I/O-Bound: Limited by input/output operations (e.g., network, file system). CPU-Bound: Limited by the processor's computational power. Concurrency Models Threading: Use for I/O-bound tasks. Managed by the OS (preemptive multitasking). Python module: threading, concurrent.futures.ThreadPoolExecutor. Asyncio: Best for I/O-bound tasks. Uses cooperative multitasking (tasks decide when to yield control). Requires…  ( 11 min )

def get_user_followers_count(user_id): """ 获取目标用户的粉丝量（不需要oatuth2.0 回调地址验证） user_id: 'int' '39335320' return: int """ url = f"https://api.twitter.com/2/users/{user_id}?user.fields=public_metrics" headers = {"Authorization": f"Bearer {BEARER_TOKEN}"} response = requests.get(url, headers=headers) response.raise_for_status() return response.json()["data"]["public_metrics"]["followers_count"]  ( 2 min )

In a world of growing email threats, a brand impersonation is one of the most damaging and widespread forms of phishing. As we know that organizations need more than just secure email delivery — they need visible proof of authenticity. That is why BIMI (Brand Indicators for Message Identification) comes into play. Actually BIMI allows brands to display their logo directly in recipients’ inboxes, that offering visual trust and higher engagement. However, for BIMI to function, it must depend on strong email authentication protocols already in place. BIMI is a standard that lets organizations to publish their brand logo in a specific format (SVG) through DNS. When supported by the mailbox provider, actually the logo appears next to the authenticated emails in the recipient’s inbox. This not …  ( 5 min )

Overview In today's digital landscape, creating compelling and polished content is essential for capturing and retaining audience attention. The publication should not be overly dense or difficult to read. 2500 words. On the other hand, the size should not be too small, where it can be consumed in just one minute. 800 words as the smallest size for a publication. An important point to note is the absence of any formatting symbols in the publication, such as or   . There is a recommendation for citations to be formatted as in-line links, with any recommended reading listed separately. If you use tables in your publications, please make sure that columns with less content are placed towards the end of the table, and vice versa. Additionally, I suggest placing more important columns at th…  ( 5 min )

Hi 👋, let's explore some MCP stuff with the amazon q developer cli. We shall try onboarding a new nextjs app with boilerplate code on GitHub in this exercise. We then just clone the code to our machine and run it locally. Let's get started 🚀 Install the q cli. brew install amazon-q Once installed open Amazon Q from the launchpad and follow the instructions there to integrate Q with shell, and then login with a builder ID. Let's create a directory where we can keep our mcp code. mkdir app-onboarding-with-q cd app-onboarding-with-q We can now add the github mcp config. Create a personal access token on github developer settings with access to All repositories and read and write permissions for Administration and Content. Add the mcp configuration in the directory on the file .amazonq/m…  ( 5 min )

A post by Jerome-Chauncey  ( 2 min )

When working with web custom elements in TypeScript, many developers find themselves needing to implement lifecycle callbacks such as connectedCallback(), adoptedCallback(), and attributeChangedCallback(). These methods are essential for managing your custom element’s lifecycle, but the implementation can often be confusing, especially regarding TypeScript type definitions. Understanding Custom Element Lifecycle Callbacks Custom elements are part of the Web Components standard, allowing developers to create reusable components encapsulated in their own HTML tags. Each custom element undergoes various lifecycle events as it is created, added to the DOM, updated, or removed. These lifecycle methods play a critical role: connectedCallback(): Invoked when the custom element is first connected …  ( 4 min )

Let’s face it — no developer dreams of manually tracking invoices or following up on late payments. But whether you’re freelancing, running a SaaS or building a startup, there comes a time when invoicing and cash flow become mission-critical. This is where AI agents come in — not just bots that send out templates, but intelligent systems that can understand context, adapt to situations and automate your financial operations like a pro. In this post, we’ll explain how AI-powered automation is transforming invoicing and payments — and how you can get started without becoming a finance expert. You’ve probably done this before: You manually create an invoice Email it to a client or user Hope they pay on time If they don’t? You chase, remind, and sometimes forget This might work for a …  ( 4 min )

If you're a developer looking to automate WhatsApp messages, manage customer communication, or build a chatbot using JavaScript, Venom Bot is your new best friend. In this blog, we’ll explore what Venom Bot is, how it works, how to set it up, and demonstrate real-world use cases—like sending messages, receiving chats, and even creating a simple command-response bot. What is Venom Bot? Venom Bot is a powerful and easy-to-use Node.js library that uses the WhatsApp Web protocol to automate and interact with WhatsApp. It's based on puppeteer, which launches a headless browser to emulate a user interacting with WhatsApp Web. It allows you to: Send and receive messages Read QR codes for authentication Automate responses (chatbot) Create group messages Send media (images, videos, documents) Use…  ( 4 min )

Hello, everyone, plz help me. "Please confirm the correct parameters and try again". My contract's constructor has 3 parameters, but "Constructor parameters" form is disabled in tronscan so I can't manually do. I don't wanna redeploy it because the fee is too high in TRON. I don't know how to solve it out.  ( 3 min )

Hey there, code adventurer! 👋 Remember that time you stumbled upon a GitHub repo that made you want to high-five your screen? Well, buckle up, because we're about to embark on a treasure hunt through the vast seas of GitHub, uncovering 10 mind-blowing repositories that somehow slipped under your radar this year. Trust me, I've been there – drowning in a sea of code, desperately seeking that one magical tool or library that'll make my developer life a tad easier (or at least more interesting). So, grab your favorite caffeinated beverage, and let's dive into these hidden gems together! Ever felt like your web designs were a bit too... perfect? Enter Rough.js, the library that adds a hand-drawn, sketchy feel to your graphics. It's like giving your website a charming bedhead look – effortle…  ( 6 min )

In today's world of highly distributed applications, performance, reliability, and low latency are critical for providing a seamless user experience. For businesses operating globally, ensuring that their applications are fast and responsive no matter where their users are located is a major challenge. This is where AWS Global Accelerator comes into play. In this article, we'll explore how AWS Global Accelerator works, specifically how it routes traffic through AWS's private global network and how it helps you deliver faster and more reliable experiences for your users, even when they are located far from your application's origin. AWS Global Accelerator is a service that improves the availability and performance of your global applications by routing traffic through AWS's vast network of …  ( 6 min )

Abstract In this post, we dive deep into the technological innovations of Arbitrum—a Layer 2 Ethereum scaling solution that is revolutionizing the blockchain space. We explore its background, core features, applications in areas such as NFT marketplaces and DeFi, challenges it faces, and what the future may hold. By examining technical details, interoperable benefits, and current debates around security and scalability, readers will acquire a well-rounded understanding of Arbitrum’s role in the crypto ecosystem. For more information, refer to the original article Riding the New Wave: How Arbitrum is Revolutionizing the Crypto Space. The blockchain landscape is continuously evolving, and solutions that address scalability have become crucial for sustainable growth. Arbitrum is one such in…  ( 8 min )

Over the years, I’ve interviewed around 100 software developers at Google and roughly the same number across my own companies. One thing has become very clear: Resumes don’t work. They’re too noisy. You get flooded with titles, buzzwords, and irrelevant project summaries. So I distilled everything down to one single task. One prompt I can give to anyone — junior or architect — and instantly get a signal. The task? Write a library that calculates the sum of a vector of values. That’s it. No extra requirements. The beauty is that it looks trivial — but the depth reveals itself as the candidate explores edge cases, generalization, scalability, performance, and design. Most junior candidates start like this: int Sum(int* data, size_t num_elements) { int result = 0; for (size_t i = 0; i…  ( 5 min )

Nix is now central to how I structure my workstation setups and manage development and production environments across my projects. Over time, I found myself repeating certain setups. This post is a short note on how I started working with Nix Flake templates to avoid or reduce this repetition. I am actively using Nix from my workstation setup to development environments, from Docker image builds to CI/CD pipelines, and even on production servers. One of the themes that comes up often is provisioning a codebase, a development environment and packaging configuration for a new project. What I usually do is check one of my previous projects and copy the relevant parts of the flake.nix file or default.nix and shell.nix files to the new project. It does not require too much effort. At the end, N…  ( 6 min )

With both nations investing billions into AI research, startups, and infrastructure, the world watches closely to see who will lead. The India vs China AI Race 2025 is shaping the global tech narrative and redefining Asia’s innovation ecosystem. China has long held the reputation as Asia’s AI powerhouse. With early investments in AI back in the 2010s, the country built a robust ecosystem backed by tech giants like Baidu, Tencent, and Alibaba. By 2025, China is leveraging its massive datasets, surveillance technology, and state-driven AI strategy to maintain a lead in areas such as: • Facial recognition and biometric surveillance The Chinese government’s National AI Plan, aimed to make China the world leader in AI by 2030, has shown significant milestones already achieved in 2025. While Chi…  ( 5 min )

Olá a todos! Hoje gostaria de abordar um tema que interessa a muitos: a conexão de um modelo de linguagem grande como DeepSeek ou ChatGPT com sua própria base de conhecimento. Neste artigo, vou explicar detalhadamente os princípios dos bancos de dados vetoriais e por que eles podem ser usados como parte da conexão da sua base de conhecimento com redes neurais “grandes” já prontas. Como exemplo, vamos considerar a busca na documentação da Amverum Cloud. Amverum Cloud é uma alternativa ao Heroku mais barata e fácil de implantar, com domínios gratuitos, armazenamento persistente incluído e a possibilidade de atualizar projetos via git push amverum master. Atualmente estamos desenvolvendo ativamente um agente de IA que ajudará os usuários a implantar projetos na nuvem, eliminar erros no código…  ( 27 min )

¡Hola a todos! Hoy me gustaría abordar un tema de interés para muchos: la conexión de un modelo de lenguaje extenso como DeepSeek o ChatGPT con su base de conocimiento. En este artículo, les explicaré detalladamente los principios de las bases de datos vectoriales y por qué pueden utilizarse para conectar su base de conocimiento con redes neuronales extensas ya preparadas. Como ejemplo, consideremos consultar la documentación de Amverum Cloud. Amverum Cloud es una alternativa a Heroku más económica y fácil de implementar, con dominios gratuitos, almacenamiento persistente incluido y la posibilidad de actualizar proyectos mediante Git Push Amverum Master. Actualmente estamos desarrollando activamente un agente de IA que ayudará a los usuarios a implementar proyectos en la nube, eliminando e…  ( 27 min )

Introduction If you're encountering the 'file format not recognized' error while building the GDAL project using Vagrant, you're not alone. Many developers face issues when compiling C/C++ projects, especially when working within virtual environments like Vagrant. This article will explore why this issue may occur and provide a step-by-step guide to troubleshoot and solve the problem effectively. Understanding the Issue The error message 'file format not recognized' during the linking stage of the GDAL build process typically indicates that the linker (ld) is having trouble with a specific shared object file, particularly in the context of the build environment used. This often arises from discrepancies between the build tools or library versions installed in your Vagrant box and those exp…  ( 5 min )

Backend development is the backbone of modern web applications. It manages server-side logic, data handling, authentication, and API communication. In this post, we’ll explore backend dev using a JavaScript-first approach — with Node.js, Express.js, and MongoDB as core tools. Backend dev involves: Managing servers Handling databases Writing business logic Serving REST APIs JavaScript (Node.js) – Great for full-stack JS Python – Django, Flask Java – Spring Boot PHP/Ruby – Mature, flexible choices SQL: PostgreSQL, MySQL NoSQL: MongoDB, Cassandra Use REST APIs to perform CRUD operations over HTTP (GET, POST, PUT, DELETE). Tools like Express.js make building APIs fast and flexible. Express.js (Node) Django (Python) Spring (Java) ORMs help abstract SQL: Prisma (Node.js) Hibernate (Java) Django ORM (Python) Middleware: Auth, logging, request validation Authentication: JWT, sessions, OAuth File Uploads: Multer for handling media Third-party APIs: Stripe, SendGrid, Google Login Using JavaScript for both frontend and backend keeps your codebase consistent and efficient. With Node.js + Express.js + MongoDB, you get speed, scalability, and simplicity. Backend development is essential to building robust, secure, and performant applications. Whether you’re building APIs, managing databases, or integrating third-party services — the backend is where the real logic lives. Want to level up? Start building real-world projects and practicing these concepts today. 📢 If you enjoyed this post, feel free to ❤️ or save it. 💬 Drop a comment: What's your current backend stack?  ( 3 min )

In today’s fast-moving tech world, creating software that’s robust, flexible, and scalable is crucial. Apps are becoming more complex, and users expect them to work flawlessly. To meet these demands, developers can take cues from traditional industries by breaking systems into smaller components, adhering to standard practices, and maintaining clear roles. This article explores how these industry-inspired strategies can help build software that's easier to manage, update, and scale—without sounding like a textbook. 🚀 Why Think Like a Factory Builder? 🏭 By adopting industrial principles, we can create software that's clear, repeatable, and durable. This doesn't stifle creativity; instead, it provides developers with a solid framework to focus on what makes their app exceptional. 🎨🛠️ The…  ( 5 min )

Did you know that 15% of the global population lives with a disability? That’s over a billion users who might not be able to use your website if it’s not accessible. What if your beautifully designed interface is pushing users away just because it's not readable by screen readers or hard to navigate by keyboard? The good news: Bootstrap, one of the most popular front-end frameworks, already has built-in accessibility features—you just need to know how to use them correctly. Let’s dive into how you can craft a user interface that works for everyone—and doesn’t require you to rebuild your UI from scratch. Legal compliance: Avoid lawsuits (like the famous Domino's Pizza case). SEO boost: Search engines love accessible websites. Wider reach: More inclusive = more users. Better UX for al…  ( 5 min )

Migrate Jenkins from Linux VM to macOS (Plain Installation) Step 1: Jenkins Backup Find your current JENKINS_HOME Backup Jenkins home sudo tar -czvf jenkins_backup.tar.gz /var/lib/jenkins Step 2: Transfer the Backup to Your macOS Machine Now this really depends on how you want to copy this data. Either SCP, USB, etc. I used traditional USB stick to copy this data to my Mac device. Step 3: Install Jenkins on macOS brew install jenkins-lts brew services start jenkins-lts By default, Jenkins will use /Users//.jenkins as the JENKINS_HOME. I faced an issue where Jenkins dint really start as it was not able to discover JAVA_HOME env upon running above command. Best way to get rid of this was to run this without services command jenkins-lts That the entire 2 words command to start Je…  ( 5 min )

Objective-C has long been a mainstay in the development of applications for iOS and macOS. Despite the rise of Swift, Objective-C remains a relevant and powerful language, particularly for maintaining legacy code and integrating with newer Swift code bases. As we move into 2025, understanding core patterns like delegation continues to be vital for developers working with Objective-C. Delegation is a design pattern used in Objective-C to pass messages between objects and to provide a mechanism for customization of behavior. It allows one object to delegate tasks to another, enabling a clear separation of responsibilities and enhancing the modularity of applications. Typically, a delegate object implements methods from a protocol to respond to certain events or actions occurring in the deleg…  ( 4 min )

Hello learner’s, in this article, we will discuss about the Rust language fundamentals. We’ll explore why we need Rust, What it is? And Core philosophy behind the language. Rust programming language was started in 2006 as personal project, in 2009 Mozilla sponsored project, in 2015 Rust 1.0 was released. Rust is general-purpose, multi-paradigm system programming Language. It’s designed for performance critical tasks, often handled by languages such as C and C++, used in operating systems, embedded systems, game engines etc. It also offers flexibility for command-line tools, web development and more. Essentially, rust achieves this low-level control and performance without requiring a garbage collector. Rust is built on key pillars: Safety: Rust guarantees memory safety at compile time, eli…  ( 3 min )

In one of our production data platforms, we used Lambda functions to trigger AWS Glue jobs every time a file landed in an S3 folder. That setup worked fine when there were only two or three data sources. But as the system expanded to support more than 10 folders, it required deploying and maintaining an equal number of nearly identical Lambda functions, each wired to specific prefixes and jobs. The architecture became increasingly brittle and harder to manage. This post outlines how that structure was replaced using EventBridge, with prefix-based filtering and direct Glue job targets. No Lambda. No maintenance overhead. Using S3 events to trigger Lambda comes with several limitations: A single Lambda function can’t be mapped to multiple S3 prefixes Each one requires separate deploymen…  ( 5 min )

To Understand Encapsulation please do check out last post Encapsulation is like a medicine capsule: the outer shell hides the complex ingredient inside, delivering only the intended effect to your body. You don't need to know the chemical makeup to benefit from it. Encapsulation is achieved through the use of access modifiers. Python primarily uses two types of access modifier. Private: Accessible from anywhere. Public: Accessible only within the class. Similarly, in programming, encapsulation wraps data and methods in a class, exposing a simple, controlled interface while keeping the internal details private and secure. Let say I want to make "model" attribute private so that nobody can manipulate the model name. So make it private just add '__model' So, question arise if we can't access attribute but we can access function which include the private attribute. Think of like if we have attribute which you don't want get manipulated then make it private.  ( 3 min )

Introduction If you're developing a MAUI application and are facing issues with the CarouselView control not displaying images from an ObservableCollection, you are not alone. This article will address why images may not show up in your CarouselView, even when the same image sources work perfectly with a standard Image control. Understanding CarouselView in MAUI The CarouselView in .NET MAUI is designed to display a collection of items in a swipeable format. Each item can be customized using a DataTemplate, which lets you define how each item appears. Typically, developers use ObservableCollection to bind dynamic data to CarouselView because it notifies the view of changes. However, while you may see indicators appear correctly, images may not load as expected. Common Issues with CarouselV…  ( 4 min )

Objective-C, a primary programming language used for macOS and iOS development, has always been appreciated for its unique blend of C's efficiency and Smalltalk's dynamism. A critical feature that sets it apart from other languages is its support for **dynamic typing**. This allows for a flexible development process that enhances code modularity and adaptability. But what truly is the purpose of dynamic typing in Objective-C? ## What is Dynamic Typing? Dynamic typing refers to the ability of a programming language to determine the type of an object at runtime, rather than during compile-time. This contrasts with static typing, where the type of an object is known and enforced during compilation. In Objective-C, this means you do not have to specify the class type of an object, providing …  ( 4 min )

If you're still not using Tailwind CSS JIT (Just-in-Time) mode in your development workflow, you're seriously missing out on one of the biggest productivity boosts Tailwind has ever introduced. The JIT compiler doesn't just make your builds faster—it fundamentally changes the way you write utility-first CSS. Once you try it, there’s no going back. Let’s break down why it's a game-changer for modern frontend developers, and how to make the most of it. JIT mode was introduced as a way to: Compile only the CSS classes you actually use Instantly reflect changes as you code Drastically reduce build times and output file size Enable dynamic class generation Instead of scanning your entire project ahead of time, it compiles your CSS on-demand as you save files. That means faster feedbac…  ( 4 min )

Selecting messages with a specified sum of verbosity can be challenging in SQL, especially when the goal is to find all messages where the sum of a specific column stays below a certain threshold. In this case, we want to find messages from a table with a specified verbosity value such that the summed values of verbosity for a given set of rows remain under a specified limit, N. Understanding the Problem In our example, we have a simple table named messages, which contains two columns: id and verbosity. Given the entries: | id | verbosity | |----|-----------| | 1 | 20 | | 2 | 20 | | 3 | 20 | | 4 | 30 | | 5 | 100 | When we wish to choose rows whose sum of verbosity is less than a certain value, say N = 70, we expect to select the rows with ids 1, 2, an…  ( 4 min )

Installing gems in Ruby often encounters hurdles, especially when transitioning environments, such as from Mac to Ubuntu. If you've tried installing the capybara-webkit gem on your Ubuntu machine and faced errors, you're not alone. The Gem::Installer::ExtensionBuildError indicates that the system is unable to compile the native extensions needed for the gem. In this guide, we will explore common causes of this error and provide a detailed, step-by-step solution to get capybara-webkit installed on your Ubuntu setup. Why Does the Installation Fail? The error you've encountered usually stems from several key issues: 1. Missing Dependencies The capybara-webkit gem depends on specific libraries and dependencies that must be present on your Ubuntu system. If these libraries are missing, the inst…  ( 4 min )

In this article, we are going to review components structure in /apps route in ACI.dev platform. We will look at: Locating the /apps route apps folder Components structure in apps/page.tsx This /apps route loads a page that looks like below: ACI.dev is the open source platform that connects your AI agents to 600+ tool integrations with multi-tenant auth, granular permissions, and access through direct function calling or a unified MCP server. ACI.dev is open source, you can find their code at aipotheosis-labs/aci. This codebase has the below project structure: apps backend frontend frontend ACI.dev is built using Next.js, I usually confirm this by looking for next.config.ts at the root of the frontend folder. And there is a src folder and app folder inside this sr…  ( 4 min )

Originally posted on https://blog.tavrn.top No, it’s not an acronym. It doesn’t stand for anything. But it does stand for something special. At Tavrn, we’re all about bringing people together in meaningful ways — and AHA! is one of our biggest steps in that direction. It’s our version of server discovery, but it’s so much more than a list of “popular” rooms. AHA! highlights the most active, engaging, and community-driven spaces on Tavrn. And the best part? It’s open to you. AHA! is a curated spotlight for standout servers on Tavrn. These are the communities you want to join — the ones where the chat’s always alive, the vibes are great, and something cool is always going on. Servers accepted into the AHA! Program are featured more prominently across Tavrn, from search results to homepage sh…  ( 4 min )

Recently, there's been a highly similar, truly open-source project Suna resembling Manus . The developer claims to have completed the development in a small villa in just 3 weeks, and enthusiastically shared a short video using a banana microphone. The Suna open-source address is: https://github.com/kortix-ai/suna Blog Introduction: Suna AI: the Open Source General AI Agent It topped the Github Trending chart on April 25, 2025, making it a must-try. This project relies on many online services. It took me more than 3 hours to get it running. The result after running is shown in the figure. After deploying locally, the project defaults to calling the claude-3-7-sonnet-20250219 model, and a task consumes $0.89 worth of tokens. Currently, recharging $5 to Claude requires an additional $0.…  ( 5 min )

Introduction In Rust programming, a common error developers encounter is the 'borrowed data escapes outside of method' error. This typically happens when a reference does not match the expected lifetime, causing issues during compilation. In this article, we'll explore the reasons behind this error and how you can fix it to successfully print data from your NodesHeap structure while implementing the Debug trait. Understanding the Borrowed Data Error When you implemented the fmt::Debug for your NodesHeap, you're trying to generate a debug representation of your data structure using an iterator. The specific error you received states that the borrowed data escapes outside of the method. This issue arises because in your implementation of the get_all function, the return type NodesHeapIterato…  ( 5 min )

Flutter makes building beautiful UIs fast and fun — but what happens when your app starts growing? When screens need to react to shared data? That’s when state management becomes essential. In this blog, we'll demystify state management in Flutter and help you decide between Bloc, Riverpod, and Provider — three of the most popular approaches in the Flutter ecosystem. State refers to the data your UI depends on. For example: A counter’s value Whether the user is logged in The list of items in a shopping cart State management is how we keep the UI in sync with the data — especially when multiple widgets care about the same data or when data changes over time. There are two broad types: Local state (e.g., setState inside a single widget) Global/shared state (e.g., auth status, theme, user pre…  ( 5 min )

Introduction If you're using Java Development Kit (JDK) 17 and noticing that your call to fieldClass.getDeclaredFields() returns an empty array, you're not alone. Many developers have encountered this issue when attempting to retrieve field information from classes in the Java Reflection API. The Java Reflection API is essential for inspecting classes at runtime, allowing developers to gather information about fields, methods, and constructors programmatically. However, certain security restrictions in JDK 17 can lead to unexpected behavior, including the inability to reflectively access declared fields in classes like Field.class from the java.lang.reflect package. Understanding the Root Cause In JDK 17, Java introduced a more robust module system that enforces strong encapsulation by def…  ( 5 min )

Hey Devs & Design-Fans! 👋 UI? UX? Schon mal gehört, aber immer noch ein bisschen unsicher, was genau was ist und wo der Unterschied liegt? Damit bist du nicht allein! Die Begriffe schwirren überall herum, werden aber oft durcheinandergeworfen. Keine Sorge! In diesem Post zerlegen wir die beiden Konzepte, schauen uns an, was sie bedeuten, wie sie zusammenspielen und warum du für ein erfolgreiches digitales Produkt – egal ob Website oder App – unbedingt beides auf dem Schirm haben musst. Lass uns Klarheit schaffen! 😊 Fangen wir mit UX an. User Experience (Nutzererfahrung oder Nutzererlebnis) beschreibt das Gesamterlebnis und die Emotionen, die eine Person bei der Interaktion mit einem Produkt (z.B. einer App, Website, Software) hat. Es geht darum, wie sich die Nutzung anfühlt: Ist es ein…  ( 6 min )

This article is created by Logto, an open-source solution that helps developers implement secure auth in minutes instead of months. Imagine this: You find a free online tool that promises to generate the perfect resume. You’re excited — until you hit the final screen: “Enter your email address to download your resume.” You pause. You don’t want your inbox cluttered with endless promotional emails. You just need that one quick download. This is exactly where disposable email addresses come into play — a clever invention built for moments like this. A disposable email address is a temporary, throwaway email you can use instead of your real one. Think of it like a rental umbrella — perfect for a sudden rainstorm, but not something you’d rely on forever. Services like 10 Minute Mail, Temp Mai…  ( 6 min )

This article is created by Logto, an open-source solution that helps developers implement secure auth in minutes instead of months. After serving business customers and developers for over three years, we at Logto have gained a deep understanding of the challenges and needs that companies face in the identity and access management (IAM) space. Based on our practical experience, daily conversations with users, and tracking industry trends, we have a clearer view of what makes a good IAM solution. In this article, I would like to share some of our thoughts and lessons learned. IAM is the gateway to any application. It is often the first thing users see. A difficult or confusing system not only increases the workload for developers but also directly hurts the experience of end users. We beli…  ( 8 min )

Fine-tuning in Artificial Intelligence (AI) refers to the process of taking a pre-trained model and adapting it to a specific task or dataset. Pre-trained models, especially large ones like GPT (from OpenAI) or BERT (from Google), are initially trained on massive datasets using general-purpose data. These models learn a broad understanding of language, patterns, or image features. However, for specialized tasks—like medical diagnosis, legal document analysis, or customer sentiment detection—fine-tuning helps the model learn domain-specific nuances. The process involves continuing the training of the model with a smaller, task-specific dataset while adjusting the model’s weights slightly. This method allows the model to retain its general knowledge while becoming more effective in the target domain. Fine-tuning is far more efficient than training a model from scratch, saving both computational resources and time. There are different levels of fine-tuning. Some approaches adjust only the final layers of the neural network (known as feature extraction), while others allow all layers to be updated (full fine-tuning). Techniques like parameter-efficient fine-tuning (PEFT), such as LoRA (Low-Rank Adaptation), are gaining popularity, especially for large language models, because they minimize the number of parameters updated. Fine-tuning is used in a variety of real-world applications, including chatbots, image generation, fraud detection, and more. It’s especially powerful in scenarios where labeled data is limited but high-quality outputs are essential. With the growth of open-source and pre-trained foundation models, fine-tuning has become a key skill for AI practitioners. To master techniques like fine-tuning, transfer learning, and prompt engineering, enrolling in a Generative AI certification course is highly recommended.  ( 3 min )

Abstract We introduce a novel numerical method, ExpRoot+Log, for function approximation based on a hybrid linear basis consisting of exponential-square-root, polynomial, and logarithmic components. This method achieves high accuracy across smooth, discontinuous, and rapidly decaying functions while remaining simple, interpretable, and computationally efficient. We show that ExpRoot+Log outperforms classical approaches such as polynomials, splines, Fourier series, and even neural networks in key scenarios, offering a new universal baseline for practical approximation. Introduction Function approximation is fundamental to numerical analysis, physics, machine learning, and signal processing. Classical bases—polynomials, splines, and trigonometric functions—have known limitations, especially near discontinuities or exponential decays. While neural networks provide expressive power, they are complex, opaque, and computationally expensive. We propose a new hybrid basis: This composition handles: All coefficients are learned linearly (e.g., via least-squares), ensuring ultra-fast performance and excellent stability. Numerical Evaluation We tested ExpRoot+Log against standard methods (polynomials, splines, Fourier) across six function types: Sine Exponential decay Step function Gaussian spike Absolute value Composite (piecewise mix) ExpRoot+Log consistently achieved 1–4 orders of magnitude lower error than polynomials or Fourier bases. Comparison with Classical Methods Code and Examples Open-source implementation and benchmarks: https://github.com/andysay1/exp_root_log https://crates.io/crates/exp_root_log  ( 3 min )

Introduction If you've encountered the error message while building your Flutter APK, such as ERROR: R8: java.lang.IllegalArgumentException: Provided Metadata instance has version 2.1.0, while maximum supported version is 2.0.0, you're not alone. Many Flutter developers face similar issues, particularly related to the R8 code shrinker. This article will guide you through understanding why this error occurs and how to fix it effectively. Why Does This Error Occur? The error appears when the Kotlin metadata version specified in your dependencies isn't compatible with the version used by the R8 shrinker in your build process. In your case, it indicates that the kotlinx-metadata-jvm library version you're using likely exceeds the maximum version supported by R8—2.0.0. If you've installed an up…  ( 4 min )

Problem description & analysis: The database table tbl has a string field DESCRIPTION. Task: Now we need to retrieve the word ‘EN’ and the subsequent string of numbers from the DESCRIPTION field. The string of numbers may consist entirely of digits, such as ‘10204’, or it may contain special characters, such as ‘10277/10’. Caution: Do not retrieve punctuation marks; If the string does not contain ‘EN’, return null. SQL： DECLARE @separator CHAR(1) = SPACE(1); SELECT * , REPLACE(c.query(' for $x in /root/r[text()="EN"] let $pos := count(root/r[. << $x]) + 1 return if (xs:int(substring((/root/r[$pos + 1]/text())[1],1,5)) instance of xs:int) then data(/root/r[position()=($pos, $pos + 1)]) else data(/root/r[$pos]) ').valu…  ( 6 min )

Access Control Models: ACL, RBAC, ABAC In system design, access control is a critical mechanism to ensure data security and correct authorization of functionalities. Depending on the complexity of the system, the variety of user roles, and the flexibility needed in resource management, there are three common access control models: ACL (Access Control List), RBAC (Role-Based Access Control), and ABAC (Attribute-Based Access Control). Below is a brief comparison of these three models, outlining their design logic, characteristics, and application scenarios to help clarify the selection and implementation considerations. Direct authorization, fine-grained, but difficult to manage Design Logic: User → Resource + Operation If a user has read and update permissions for the development departme…  ( 4 min )

Last March 22, hundreds of makers, students, educators, and tech advocates gathered at STI College Cubao for Arduino Day Philippines 2025, joining the global celebration of 20 years of Arduino and open source innovation. With the theme “Celebrating 20 Years of Arduino and Open Source Innovation,” this year’s event became more than just a commemoration—it was a powerful reflection of how far the local tech community has come and where it’s headed next. The event opened with warm welcomes from Marvin James Erosa and Jeferson De Leon, immediately setting a collaborative tone for the day. And in true Filipino fashion, a surprise Zumba icebreaker added the perfect energy boost to kick things off. But from there, it was all systems go—talks, workshops, demos, and inspiring stories from all corne…  ( 5 min )

Somewhere between thinking and speaking, there’s a strange place where meaning starts to solidify. It’s not quite a word yet. More like a haze of associations. A mental sketch your brain tries to translate into something shareable. Sometimes it works. Most of the time it doesn’t, at least for me. I tend to mumble a lot. That private language in your head, the one you use to talk to yourself, isn’t English or Portuguese or Python. It’s not even a language, really. It’s raw and messy. A kind of silent shorthand sculpted by experience. Try catching it. Try explaining it. It slips through like fog in your fingers. Science is already poking around in there. Researchers are feeding brain signals into neural networks and getting fuzzy images back. They’re trying to reverse-engineer what we see, d…  ( 7 min )

There’s something comforting about knowing your company’s documents are safe, backed up, and only accessible to the right people. In this post, we’ll walk through setting up Azure storage for your internal files—complete with geo‑redundancy, private containers, easy partner sharing, automated cost‑savings, file shares with snapshots, and even locking it all down to your corporate network. Grab a coffee, fire up the Azure portal, and let’s make your files bulletproof! What we’re doing: Creating a storage account that survives whole‑region outages by replicating data to another region. In the Azure portal, click Storage accounts → + Create. Select the resource group you used before. Give your account a unique name like secureclient. Under Redundancy, pick Geo‑redundant storage (GRS)—that’…  ( 5 min )

Table of Contents Introduction to API Testing 1. Smoke Testing 2. Functional Testing 3. Integration Testing 4. Regression Testing 5. Load Testing 6. Stress Testing 7. Security Testing 8. UI Testing (API Driven) 9. Fuzz Testing Conclusion Types of API Testing: A Comprehensive Guide Application Programming Interfaces (APIs) are the backbone of modern software architecture, allowing systems to communicate and share data seamlessly. API testing is critical for ensuring that these interactions are reliable, secure, and perform as expected. Various testing methodologies help validate different aspects of APIs. This article explores the most common types of API testing. Smoke Testing Purpose Smoke testing is a quick, initial check to ensure that the basic functionality …  ( 5 min )

Introduction When developing an application that requires seamless data exchange between C# and PHP, maintaining character integrity is crucial. If you've encountered issues where characters like 'é' appear as 'é' after data transfer, you're likely facing a character encoding problem. This article will guide you through understanding character encoding and how to resolve these issues effectively. Understanding Character Encoding Issues Character encoding is essential for correctly displaying and processing text data. In your case, both the C# application and the PHP server are set to use UTF-8, but inconsistencies can arise during data transfers. This usually occurs when data is transformed in a way that misinterprets the byte sequences of special characters, leading to the corruption of …  ( 4 min )

We talk about writing better test cases, improving coverage, and spotting edge cases early. But rarely do we talk about how those same instincts apply to hiring. And within 2 hours? Most Job Posts Are Noise Vague requirements Tools thrown in without context Unrealistic experience levels (10 years of Cypress? Sure.) Zero clue what kind of thinking the role actually needs I didn't want that. So I stripped it down and wrote it like I write tests: clear, intentional, and designed to reveal behavior. I ended the post with a line that acted like a trapdoor: “Want in? Send your resume and a short note on how you found your worst bug to hi@proudcloud.io.” That was the test. If you missed it, you failed silently. The Best Testers Didn’t Just Apply. They Investigated. But a smaller group took the time, wrote thoughtful bug stories, and sent real applications to the email provided. And those were the ones I called in for interviews. Some of the best candidates I’ve ever spoken to came from that post. Sound familiar? This Isn’t Just About Hiring The way you write a bug report. The way you name a test. The way you respond when something feels off, even if the build says "green." QA is never just about tools. It's about how you think. The Full Breakdown What the full post looked like How the interviews went What our actual QA hiring process is like And why I believe job posts are a mirror of team quality… I wrote the full breakdown here: Why Our QA Job Post Blew Up — And What That Says About the Industry Closing Thought Because if your words can’t pass the simplest attention check, don’t expect the right people to pass through. Your QA Overlord https://qajourney.net If you missed the last line of the job post, you wouldn’t survive our bug tracker anyway.  ( 4 min )

Introduction If you're encountering issues with your MATLAB simulation where the return simulation data doesn't match your input look-up table data, you’re not alone. This is a common situation for many engineers and data analysts who rely on simulations for accurate modeling in their projects. Understanding why the simulation data diverges from the expected results is crucial for troubleshooting and achieving reliable outputs in MATLAB. Let's delve into the potential reasons for this discrepancy and explore step-by-step solutions to ensure that your simulations yield accurate results. Common Reasons for Discrepancies in MATLAB Simulations 1. Interpolation Errors When using look-up tables, MATLAB typically performs interpolation to fill in gaps between data points. If your input data is sp…  ( 5 min )

A restFull API to get data of all the launches done by ISRO! it is now open source and would love you guys to explore the codebase and make your contributions to it! here's the link to postman documentation: https://www.postman.com/spaceflight-geologist/vyomtracker-api/documentation/axink7u/vyomtracker-api here's the repo link: https://github.com/kartikshukla17/vyomtracker-api Hi guys! 🚀 Making VyomTracker-API public! 🎉 It provides details on all ISRO launches via the API. 🌌 It's open-source! Anyone can contribute by checking the README and Postman docs for a brief understanding. Check it out here: https://t.co/vb5yjBfelB#OpenSource #API #ISRO — Kartik Shukla (@kartik_shukla17) April 30, 2025  ( 3 min )

※This is an English translation of the original Japanese article: https://dev.classmethod.jp/articles/snowflake-generation-2-standard-warehouses/ This is Sagara. Snowflake has released new warehouses with improved performance, called "Generation 2 standard warehouses". https://docs.snowflake.com/en/release-notes/2025/other/2025-05-05-gen2-standard-warehouses I tried comparing the speed of these new warehouses with traditional ones, and I'll summarize the results here. Below is a translation of a quote from the official documentation. "Generation 2 standard warehouses" are the next generation of Snowflake's current standard virtual warehouses, focused on improved performance. Generation 2 standard warehouses (Gen2) are an updated version (“next generation”) of Snowflake’s current standard v…  ( 6 min )

Introduction When working with integration tests in .NET 8, especially when utilizing secrets such as clientId and clientSecret, many developers face issues of empty secret values during pipeline execution. This common problem typically arises in environments like Azure DevOps where secrets must be correctly configured and utilized in the pipeline. Understanding the Problem In your scenario, it seems the Azure DevOps pipeline does not recognize the secrets added to the library asset group, leading to the variables clientId and clientSecret being empty. This can happen due to various reasons such as misconfiguration of variable groups, permissions, or pipeline setup. Let’s break down the potential issues and guide you through resolving them. Step-by-Step Guide to Fix Empty Secrets To rectif…  ( 4 min )

Originally posted at https://qckfx.com/blog/why-engineering-teams-should-build-their-own-ai-coding-agents Imagine walking into an engineering department three years from now. The highest-performing teams will be defined by the proprietary AI systems they've built, customized for their specific codebases, architectural patterns, and business domains. These teams will wield AI as a strategic differentiator, not merely consume it. This is where our industry is clearly headed. As AI increasingly becomes the primary author of code across industries, the strategic advantage will shift from who can write the best code to who can best direct, customize, and optimize AI systems to write that code. The best engineering teams won't achieve these results by simply adopting off-the-shelf AI coding tool…  ( 7 min )

I've worked in several agile teams as both a developer and lead developer. One particular project sticks in my mind — a team of ten people, dozens of microservices, and a lot of GitLab repositories to manage. During each sprint, we were juggling features across multiple repos. At the same time, we were responsible for reviewing each other’s code. Our typical flow was: Open a merge request (MR) on GitLab Move the related Jira ticket Share the MR link in a Teams channel Move on to the next story When the workload was light, it was manageable. But in busy sprints, reviews piled up quickly. Large MRs got ignored, or rushed through. And tracking what was waiting, what was blocked, or what still needed input? A mess. We experimented with several ideas: Using GitLab labels like needs-review or blocked Adding Jira tags Rotating reviewer ownership by repo each sprint They helped — but they didn’t solve the root problem: lack of visibility and timing. Code reviews were often asynchronous and scattered. We were switching contexts constantly, jumping between repos, and forgetting which contributions needed our attention. We didn’t need more tools — we needed a better way to surface and track reviews. Something that would: Give us a unified view of MRs Let us know what’s ready to merge, what’s waiting, and what’s blocked Respect our flow, instead of interrupting it That’s when I started working on a side project, aiming to solve this specific pain point. That side project became Bellugo — a contribution tracker designed to help teams stay on top of reviews across repositories without the chaos. It’s still a work in progress, but if this resonates with your team, I’d love for you to check out the landing page and maybe join the private beta waitlist.  ( 4 min )

If you're looking to streamline your HTML documents by replacing empty anchor () tags with text indicators based on their unique page IDs, you're in the right place. This is a common scenario in web development where removing or replacing tags can enhance readability and maintainability. In this article, we will use Bash commands with regular expressions to achieve this. Understanding the Problem In your HTML files, you may come across instances of empty tags that serve as placeholders. For example: some text Your goal is to replace these tags with: 123 some text 124 The new tags will display the page IDs (without the 'page_' prefi…  ( 4 min )

Building `Map::Tube::` maps, a HOWTO: weaving a web Paul Cochrane 🇪🇺 ・ May 2 #perl #git  ( 2 min )

So, you're self-hosting awesome apps like Jellyfin, Home Assistant, or your personal blog with Docker. You want that sweet, sweet HTTPS padlock for secure connections, and Let's Encrypt is the obvious choice for free SSL certs. Awesome! You set up your reverse proxy (maybe Traefik, because it's slick!), point it to your app, and tell it to get a certificate... only to hit a wall. Why? Meet the home networker's nemesis: ISPs blocking incoming port 80. The Standard Way (and the Wall) Let's Encrypt's default validation method, HTTP-01, is simple: their servers try to access a special file on your server over standard HTTP (port 80) to prove you control the domain. Let's Encrypt -> Your Public IP:80 -> Does challenge file exist? -> OK! Cert Issued! But if your ISP blocks incoming connections …  ( 5 min )

Learning Redux is a real pain in the @#$#$^&. Good thing the team I was on at the time I learned it highly valued taking the time to learn, because it took me a good 30 out of 40 hours of a work week to figure out what the eff was going on. Once I finally did learn it however, I realized that the majority of what slowed me down in the learning process was that I couldn’t find a great explanation of exactly what Redux was doing. All I could find were tutorials on how to use it, and not really very much info on how it worked. I’m going to try to solve that issue with this post. I’m also going to assume that you know how to use React, and that you know what Redux is and why you want to learn it. I’m also only covering the very basics of Redux and what you need to know to be able to hopefull…  ( 5 min )

The Testing Time Crisis When our team started building a new fintech application last year, we hit an unexpected bottleneck: testing time. With multiple user roles, complex verification flows, and strict security requirements, our QA cycles grew from days to weeks. This wasn't just frustrating—it was directly impacting our release velocity and team morale. After several painful sprints, we implemented five changes to our testing approach that dramatically reduced our testing time without compromising quality. I'm sharing these because they've been game-changers for us, and they might help your team too. One of our biggest time sinks was manually creating test users with different permission levels. We solved this with an automated provisioning system. // Example of our user provisioning …  ( 5 min )

Introduction As developers, we all face the hidden challenge that rarely gets discussed in coding tutorials: generating and managing test user data at scale. This becomes particularly problematic when building applications requiring email verification, multi-user testing, or complex authentication flows. After struggling with this issue on several projects, I've discovered some effective approaches worth sharing. If you've ever found yourself creating multiple Gmail accounts just to test a simple registration flow, you know the pain I'm talking about. Let me break down the key challenges: Verification Bottlenecks: Email verification is now standard for most applications, but creating and accessing multiple real email accounts is tedious Data Persistence: Temporary email services often ex…  ( 4 min )

How to Set Up Next.js 15 for Production in 2024 Jan Hesters ・ Nov 19 '24 #nextjs #webdev #react #tutorial  ( 2 min )

Daily JavaScript Challenge: Capitalize the First Letter of Each Word in a String Hey fellow developers! 👋 Welcome to today's JavaScript coding challenge. Let's keep those programming skills sharp! Difficulty: Easy Topic: String Manipulation Given a sentence, your task is to capitalize the first letter of each word. Words are separated by spaces, and no punctuation needs to be considered. Return the resulting string with each word capitalized. https://www.dpcdev.com/ Fork this challenge Write your solution Test it against the provided test cases Share your approach in the comments below! Check out the documentation about this topic here: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/toUpperCase How did you approach this problem? Did you find any interesting edge cases? What was your biggest learning from this challenge? Let's learn together! Drop your thoughts and questions in the comments below. 👇 This is part of our Daily JavaScript Challenge series. Follow me for daily programming challenges and let's grow together! 🚀 javascript #programming #coding #dailycodingchallenge #webdev  ( 14 min )

🎯 Learning Goals What are the characteristics of Singly Linked Lists? What are its time complexities? ListNode? Has a value and a next pointer next is a reference to another ListNode Order in memory may not be contiguous (unlike arrays which are) Simple while loop with a current pointer can be used: cur = ListNode1 while cur: cur = cur.next ⌚ Time complexity is O(n) , where n is the number of nodes in the linked list Now if the Linked List is circular (i.e. last node points back to first) traversing like this would cause an infinite loop. It would be helpful if we’re keeping track of the head and the tail of the linked list using pointers Advantage over array is that inserting is always O(1) even if we insert in middle. Let’s say we wanna add at the end or tail : tail.next = NewListNode tail = NewListNode # or this line 'tail = tail.next', both are correct ⌚ Time complexity is O(1) Removing any node is constant time ASSUMING we have a pointer to the previous node. Let’s say we wanna remove the second node: head.next = head.next.next # Just set the next pointer of head to the one after the deleted node Can be assumed that garbage collection will take place for the deleted node ⌚ Time complexity is O(1) For both of these operations, the caveat is if we don’t have a reference to the node at the desired position (head or tail), the time will still be O(n) Operation Big-O Reading/ Access O(n) Traversal/ Search O(n) Insertion O(1)* Deletion O(1)* *Assumes you have a reference to the node at the position (if not it is O(n) ) 206. Reverse Linked List (Link) 21. Merge Two Sorted Lists (Link)  ( 4 min )

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Opinion by: Barna Kiss, CEO of Malda An idea recently floated by some prominent thinkers in the Ethereum space to reclaim value for the mainnet is the taxing of its Layer-2s. The future of Ethereum does not depend on policy but on enabling frictionless capital movement between the L2s in question. Tariffing rollups may appear a neat way to reclaim value for the mainnet. In practice, it would fragment the ecosystem, drain liquidity, push users toward centralized platforms, and avoid decentralized finance altogether. In a permissionless system, capital flows to where it is treated best, and Ethereum's rollups mistreat it. Liquidity fragmentation is Ethereum's real threat In traditional finance, the link between fluidity and growth is well established. Lower barriers to capital inflows lead …

Why finance veterans are still skeptical about blockchain Blockchain has been part of the finance conversation for over a decade now. Yet many professionals remain cautious.  Many seasoned professionals in finance, wealth management and economics often question blockchain’s relevance, asking, How exactly is blockchain supposed to fit into what we already do? This question reflects a few key ongoing skepticisms about blockchain within finance. Uncertainty about practical applications Blockchain offers some big promises: faster settlements, stronger security and better transparency. But actually applying those promises across banking, accounting and operations is still complicated. A 2021 APQC survey identified the main hurdles: a lack of industry-w…

Representative Maxine Waters, ranking member of the House Financial Services Committee (HFSC), led Democratic lawmakers out of a joint hearing on digital assets in response to what she called “the corruption of the President of the United States” concerning cryptocurrencies. In a May 6 joint hearing of the HFSC and House Committee on Agriculture, Rep. Waters remained standing while addressing Republican leadership, saying she intended to block proceedings due to Donald Trump’s corruption, “ownership of crypto,” and oversight of government agencies. Digital asset subcommittee chair Bryan Steil, seemingly taking advantage of a loophole in committee rules, said Republican lawmakers would continue with the event as a “roundtable” rather than a hearing. HFSC Chair French Hill urged lawmakers at the hearing to create a “lasting framework” on digital assets, but did not directly address any of Rep. Waters’ and Democrats’ concerns about Trump’s involvement with the crypto industry. He claimed Waters was making the hearing a partisan issue and shutting down discussion on a digital asset regulatory framework. This is a developing story, and further information will be added as it becomes available.

Binance co-founder Changpeng “CZ” Zhao expects Bitcoin’s price to top at $500,000 to $1 million during this market cycle. During an interview with Rug Radio published on May 5, Zhao said that he expects Bitcoin to reach up to one million dollars during this market cycle. He also highlighted the role of Bitcoin spot exchange-traded funds (ETFs) in this rise, saying that the increasing institutionalization of Bitcoin is a good thing for the market: “There’s the ETFs. There’s this institutionalization of Bitcoin [ … ] it’s a positive in terms of price action, obviously. Our bags are up  —  not the alt‑coins as much, but at least Bitcoin is.” Zhao explained that the ETFs are “bringing the traditional institution money into crypto” and “most of the money in the US is institutional money.” He sa…

Investment bank Citi and Switzerland’s SIX Digital Exchange (SDX) are teaming up to modernize traditional private markets through tokenization. The initiative, revealed during the Point Zero Forum in Switzerland, will leverage SDX’s blockchain-based Central Securities Depositary (CSD) platform to tokenize, settle, and safekeep assets, according to a May 6 announcement. The platform, expected to go live by the third quarter of 2025, will make late-stage, pre-initial public offering (IPO) equities accessible to institutional and eligible investors globally. For issuers, the project offers a compliant and scalable framework to manage liquidity, particularly for early investors and employees, while maintaining cap table control. For investors, it opens access to high-growth, venture-backed com…

Southeast Asia’s superapp Grab has partnered with Natix, a project within Solana’s decentralized physical infrastructure network (DePIN), to cooperate on mapping and autonomous driving technologies. The joint collaboration aims to combine Natix’s blockchain-based mapping data with Grab’s camera hardware and mapmaking technology featuring artificial intelligence support, Natix said in an announcement on May 6. “This partnership brings together the best of both worlds,” the announcement noted, pointing to Grab’s expertise in crowdsourced mapping and Natix’s unique DePIN model that rewards users for providing decentralized data input. Source: Natix “By combining GrabMaps’ AI-powered mapping technology with Natix’s decentralized data network, we’re enabling real-time, high-fidelity map updates…

Key points: Bitcoin is struggling again as gold retakes the limelight with week-to-date gains of nearly 5%. Bitcoin’s correlation with gold is under scrutiny amid ongoing macroeconomic shifts. Traders see a short-term slump amid a wider BTC price rebound. Bitcoin (BTC) eyed fresh month-to-date lows into the May 6 Wall Street open as “directionless” crypto markets contrasted with a gold rebound. BTC/USD 1-hour chart. Source: Cointelegraph/TradingView Analysis: Bitcoin, crypto “largely directionless” Data from Cointelegraph Markets Pro and TradingView showed BTC price momentum stalling at $95,000 before the latest daily close.  Inching closer to the key yearly open support level at $93,500, BTC/USD appeared caught in limbo while gold returned to outperform. XAU/USD was up 1.5% on the day…

Democratic lawmakers in Washington are backing off support for crypto legislation amid heightened concerns over corruption, including the conduct of the Trump family’s World Liberty Financial (WLFI). In March, the GENIUS Act, which would regulate stablecoins in the US, passed a critical committee reading with the support of several pro-crypto Democrats. Democratic Senators Ruben Gallego, Mark Warner, Lisa Blunt Rochester, Andy Kim and Angela Alsobrooks voted with Republicans, opposite lead Democrat and prominent crypto critic Senator Elizabeth Warren. The bill passed the committee only after a number of changes were made, including stricter requirements for stablecoin issuers and provisions for Anti-Money Laundering, countering terrorism financing and risk management procedures.  Now, it s…

Key takeaways: Ripple's end-to-quarterly market report fuels uncertainty, impacting XRP price negatively. Low open interest in XRP futures signals weak trader confidence. XRP price technicals weaken with resistance at $2.27 and declining RSI. XRP (XRP) fell on May 6, down 3% in the last 24 hours to trade at $2.09, due to numerous factors. Its trading volume has increased by 25% over the same period to $2.5 billion, reinforcing the momentum of the bears.  XRP/USD four-hour chart. Source: Cointelegraph/TradingView Let’s look at the factors driving the XRP price down today. Ripple’s discontinues quarterly reports On May 5, Ripple revealed plans to end its quarterly XRP markets report, which it has released since 2017. The company attributed the decision to the reports falling short of exp…

Key takeaways: Bitcoin’s Coinbase premium index turned negative for the first time in 15 days, indicating defensive short-term sentiment among US investors. Bitcoin CME futures gaps between support at $92,000-$92,500 and resistance at $96,400-$97,400 suggest a period of range-bound trading. Bitcoin’s Coinbase premium index, which measures the gap between BTC price at Coinbase Pro and Binance exchange, turned negative after a 15-day positive stint, signaling potential bearish sentiment among US investors. This drop coincides with Bitcoin (BTC) slipping below $94,000, and the premium’s decline suggests reduced buying pressure on Coinbase, which is viewed as a proxy for both institutional and retail demand. Bitcoin Coinbase premium. Source: CryptoQuant Cointelegraph reported early signs …

While blockchain infrastructure may be ready for institutional use, many legal teams at large firms remain cautious about full integration with the technology.  At the Token2049 event in Dubai, DoubleZero Labs founder and former Solana head of strategy Austin Federa told Cointelegraph that today's high-performance blockchains like Solana are technically capable of supporting large-scale institutional usage. However, lawyers still need to catch up.  “Most blockchains nowadays, especially things like Solana, are fast enough for institutions to use them,” Federa said. “It’s really more about the institutions and the institution’s lawyers getting comfortable with crypto.” Federa added that institutional lawyers and compliance teams are still addressing regulatory concerns. The executive said t…

Decentralized autonomous organization (DAO) HydraDAO claims that its researchers were able to use a novel technique to repair severed spines in rats. In a May 5 X post, decentralized science (DeSci) project HydraDAO said that one of its research projects resulted in “rats who had their spines fully transected” being able to walk again. More notably, recovery from surgery reportedly only took five days. Source: HydraDAO The post featured a video of partially shaved (presumably due to surgery) rats walking in what appeared to be a laboratory setting. The effort in question is the Dowell spinal fusogens project led by Michael Lebenstein-Gumovski, which raised 380,700 USDC (USDC) from donors. The dedicated HydraDAO page reads: “The Dowell team submitted a project proposal to HydraDAO. After ca…

Key takeaways: Berkshire holds $347B in cash, enough to buy ~18% of Bitcoin’s supply. Greg Abel has not signaled a shift from Warren Buffett’s anti-Bitcoin stance. Berkshire already has indirect crypto exposure via Nu Holdings, Jefferies. Warren Buffett announced at Berkshire Hathaway's annual shareholder meeting on May 3 that he will step down as CEO by the end of 2025, with Greg Abel taking over. This transition raises speculation about Berkshire’s financial capacity to purchase Bitcoin (BTC) under the new leadership. Source: Discover Crypto Berkshire can easily surpass Strategy’s BTC stash Berkshire ended Q4 2024 with a record $347 billion in cash and US Treasury bills, representing about 32% of its $1.1 trillion market capitalization. The company could acquire approximately 3.52 …

What is the Paws Telegram Mini App? Paws is a Telegram-based Mini App created by the same team behind other projects, such as Notcoin and Dogs.  If you’ve been cruising around Telegram lately, chances are you’ve stumbled upon Paws, the viral crypto Mini App that’s got everyone tapping, clicking and inviting their friends like it’s 2010 FarmVille all over again.  Originally launched in October 2024 on The Open Network (TON) blockchain, Paws exploded in popularity with its ultra-simple tap-to-earn concept. Think of it as a gamified rewards engine embedded directly in Telegram, where users rack up points by completing tasks, referring others and interacting with mini-game elements.  Within just eight days of going live, Paws pulled in over 20 million …

Petr Kozyakov, CEO of crypto payments platform Mercuryo, told Cointelegraph that the future of finance may not be a winner-takes-all scenario but a blend of digital assets and fiat, each used where it makes the most sense.  In a Cointelegraph interview, Kozyakov said that while crypto payments are seeing an increase in adoption and demand, the asset class won’t be fully replacing fiat money anytime soon. He said the two asset classes will coexist, with people choosing the more convenient payment option in different situations.  “We don’t think crypto will replace fiat,” Kozyakov told Cointelegraph. “They will coexist, and people will turn to crypto when it’s the easier, more practical option, whether that’s for payroll, yield or money transfers.” Mercuryo Petr Kozyakov at the Token2049 eve…

Veteran US Internal Revenue Service (IRS) official Trish Turner was appointed to lead the agency’s digital assets division following the departure of two key crypto-focused executives. Turner, who has spent over 20 years at the IRS and most recently served as a senior adviser within the Digital Assets Office, will now head the unit, according to a report from Bloomberg Tax citing a person familiar with the situation. Her promotion marks a significant leadership transition at a time when US crypto tax enforcement is facing both internal and external pressures. On May 5, Sulolit “Raj” Mukherjee and Seth Wilks, two private-sector experts brought in to lead the IRS’s crypto unit, exited after roughly a year in their roles. Mukherjee served as compliance and implementation executive director, w…

Crypto exchange OKX’s CEO for its Middle East and North Africa (MENA) arm urged the industry to focus on delivering real-world utility as interest in real-world asset (RWA) tokenization accelerates.  In a Cointelegraph interview at the Token20249 event in Dubai, OKX MENA CEO Rifad Mahasneh warned that while tokenization is promising, projects must “clearly demonstrate” the benefits of tokenizing specific assets.  “In some cases, we’re tokenizing things that don’t need tokenization, but in some cases, we’re tokenizing things that actually give you real, everyday value, right? And if you can see that everyday value, then that is a promising project,” Mahasneh told Cointelegraph. He said hype can drive project growth in the Web3 space, but providing everyday value should be the priority.  OKX…

Opinion by: Simon Cain, contributor at Bitcoin Policy UK Most jurisdictions globally are researching, developing or implementing retail central bank digital currencies (CBDCs). If you see these as harmless move-with-the-times digital updates of old-fashioned paper money, look again. CBDCs potentially mean financial serfdom via a monetary panopticon where the authorities closely control every transaction.  If you think this sounds paranoid, just consider the words of Augustin Carstens, head of the Bank for International Settlements — the central bank for the world’s central banks. Lamenting the authorities’ current inability to control cash transactions, he says that with a CBDC, a “central bank will have absolute control on the rules and regulations that will determine use... also we will …

Efforts to pass crypto legislation in the US Senate face mounting resistance amid growing ethical concerns around US President Donald Trump’s ties to crypto. In a May 5 letter to the US Office of Government Ethics, Senators Elizabeth Warren and Jeff Merkley said that Trump and his family stand to personally profit from an investment involving UAE state-backed firm MGX, crypto exchange Binance and World Liberty Financial (WLFI). The senators called for an urgent probe, warning the deal may violate the US Constitution’s Emoluments Clause and federal bribery statutes. At the center of the controversy is WLFI’s USD1 stablecoin, reportedly chosen for a $2 billion investment MGX plans to make into Binance. The senators said the transaction amounts to a potential backdoor for foreign influence an…

Bitcoin Core developers have decided to remove a limit on transaction data in the next network upgrade, enabling more data to be included in a more efficient way.  “Bitcoin Core’s next release will, by default, relay and mine transactions whose OP_RETURN outputs exceed 80 bytes and allow any number of these outputs,” read the announcement on GitHub by Bitcoin developer Greg Sanders on May 5.  The long-standing limit was originally a “gentle signal that block space should be used sparingly for non-payment proof of publication data,” has outlived its utility, he added.  The proposal (PR 32359) was created by Bitcoin pioneer Peter Todd at the request of Chaincode Labs.  OP_RETURN is a special type of Bitcoin (BTC) transaction output that allows storing small amounts of data on the blockchain,…

Alex Mashinsky, the founder and former CEO of bankrupt crypto lending platform Celsius, has blasted the government's 20-year “venom-laced” sentence request, declaring it a “death-in-prison sentence.” The US Department of Justice requested Mashinsky receive at least 20 years behind bars in the May 8 sentencing for his role in misleading Celsius users and profiting from the price manipulation of Celsius (CEL), which would make the 59-year-old 79 if he serves the whole sentence. Lawyers acting for Mashinsky argued in a May 5 reply memorandum filed in a New York district court that he should receive no more than 366 days, because the DOJ hasn't taken into account his status as a nonviolent first-time offender with a previously unblemished 30-year history in business.   “The government's venom-…

The Israel-based eToro Group says it’s looking for a valuation of up to $4 billion with its initial public offering in the US, as the stock and crypto trading platform forges ahead with listing on the Nasdaq. The company and existing stockholders are aiming to raise $500 million through offering a total of 10 million shares priced between $46 to $50 apiece, eToro said on May 5. A filing with the US Securities and Exchange Commission shows eToro is offering 5 million shares, with a further 5 million being put up by the likes of the company’s co-founder and CEO, Yoni Assia; his brother and executive director, Ronen Assia; along with venture firms Spark Capital, BRM Group and Andalusian Private Capital, among others. The company offers stock and crypto trading targeting retail and plans to li…

A Russian-Israeli citizen allegedly involved in the $190 million Nomad bridge hack will soon be extradited to the US after he was reportedly arrested at an Israeli airport while boarding a flight to Russia.  Alexander Gurevich will be investigated for his alleged involvement in several “computer crimes,” including laundering millions of dollars and transferring stolen property allegedly connected to the Nomad Bridge hack in 2022, The Jerusalem Post reported on May 5. Gurevich returned to Israel from an overseas trip on April 19 but was ordered to appear before the Jerusalem District Court for an extradition hearing soon after, according to the report.  On April 29, Gurevich changed his name in Israel’s Population Registry to “Alexander Block” and received a passport under that name at Isra…

Two Florida crypto bills have been removed from the legislative process in the latest blow to American state-level strategic Bitcoin reserve ambitions.  Florida’s House Bill 487 and Senate Bill 550 have been “indefinitely postponed and withdrawn from consideration” on May 3, according to the Florida Senate.  Florida’s legislative session adjourned on May 2 without the passage of these two bills, which would have advanced legislation to establish a crypto reserve for the state. The Senate and House agreed to extend the session until June 6 to address budget plans.  Lawmakers passed about 230 bills during the session, dealing with things like prohibiting putting fluoride in the water, protecting state parks, and a school smartphone ban, but diversifying state treasury portfolios was not amon…

A hacker who took over the Tron DAO X account is estimated to have made around $45,000 in improperly solicited funds, according to a spokesperson from Tron.  Speaking to Cointelegraph, the Tron public relations team confirmed that on May 2, the Tron DAO account posted a contract address and sent direct messages to solicit payments in exchange for promotional advertising on the Tron account. “Our security team quickly identified the intrusion and cut off access to the hacker, but we ask the community to continue to be vigilant. We will never ask anyone for payments like this via DM or otherwise,” they said.  The team said that based on the illicit contract address the hacker posted, the amount improperly solicited appeared to be around $45,000.  Asked whether the same hacker could be respon…

The Tron network has drawn closer to regaining the lead from Ethereum in Tether circulation after another big mint by the US stablecoin issuer. On May 5, Tether minted another $1 billion Tether (USDT) on the Tron network, according to Arkham Intelligence. This brings the total USDT on Tron to $71.4 billion, according to the Tether Transparency report.  In comparison, there is currently $72.8 billion USDT circulating on the Ethereum network, so just $1.4 billion more USDT on Tron will see it become the leading network for the world’s largest stablecoin issuer, as it has been previously over the last two years.  Tron was ahead of Ethereum for USDT circulation between July 2022 and November 2024, but a large $18 billion mint on Ethereum pushed the network ahead again, according to CryptoQuant…

The new “Digital Asset Market Structure Discussion Draft” introduced by House Republicans on May 5 could work to reduce the dominance of large crypto firms and promote more participation in the broader market, according to an executive from Paradigm.  The discussion draft, led by the House agricultural and financial services committee chairs Glenn Thompson and French Hill, is an “incremental, albeit meaningful, rewrite” of the Financial Innovation and Technology for the 21st Century Act (FIT21), Paradigm’s vice president of regulatory affairs Justin Slaughter said in a May 5 X post. One-pager of the digital asset market structure discussion draft submitted by House Republicans on May 5. Source: US House Agriculture Committee One of the major changes from FIT21 is that the draft defines an…

Samourai Wallet’s lawyers allege federal prosecutors suppressed advice that the firm didn’t need a license before they charged executives at the crypto mixing service months later.  In a May 5 letter to a Manhattan federal court, lawyers for Samourai co-founders Keonne Rodriguez and William Hill said prosecutors disclosed that the US Treasury Department’s Financial Crimes Enforcement Network (FinCEN) representatives told them six months before they charged the pair “that under FinCEN’s guidance, the Samourai Wallet app would not qualify as a ‘Money Services Business’ requiring a FinCEN license.” “Shockingly, six months later, the same prosecutors criminally charged Keonne Rodriguez and William Hill with operating just such a business without a FinCEN license,” the lawyers added. The letter…

The hub has 70 participants including Accenture, KPMG and CaixaBank.  ( 24 min )

Formerly known as Janover, the company's SOL holdings are worth more than $57 million at current prices.  ( 23 min )

Ahead of the People’s Regulatory Roundtable at Consensus 2025, six leading crypto lawyers discuss whether core crypto principles, like decentralization and privacy, will be included in upcoming legislation and regulation.  ( 33 min )

Democratic Senator Chris Murphy pushed a bill to block presidential coins while Elizabeth Warren described how to get Dems to move forward on stablecoins.  ( 28 min )

The Canadian firm is betting on Solana by using debt financing to scale its validator footprint and crypto holdings.  ( 25 min )

If approved, the fund would be the first exchange-traded fund tied to BNB in the U.S.  ( 24 min )

The token has traded like an unweighted mix of bitcoin and ether since May 2021, the report said.  ( 24 min )

The product allows investors to add CRO exposure to their portfolios without handling crypto wallets or exchanges.  ( 23 min )

Sui (SUI) fell 7.7% and Aave (AAVE) declined 7.5%, leading the index lower.  ( 22 min )

Benchmark's Mark Palmer initiated coverage on the firm's roughed-up shares with a buy rating and $3 price target.  ( 24 min )

The funding will enable DogeOS to support a variety of consumer apps, enhancing the Dogecoin ecosystem and its decentralized finance services.  ( 25 min )

We have only seen some nuanced demand for protective BTC puts, reflecting limited caution among sophisticated traders, Deribit's CEO told CoinDesk.  ( 27 min )

Your day-ahead look for May 6, 2025  ( 37 min )

Citi will act as a custodian and issuer agent for tokenized assets on SDX’s digital Central Securities Depository (CSD) platform.  ( 27 min )

The newly formed Sentora aims to offer a compliant DeFi platform for sophisticated investors looking for yield, liquidity and risk management.  ( 26 min )

The collaboration will enhance mapping accuracy by combining Natix’s network with Grab’s mapmaking technology.  ( 24 min )

The two bills, which were both filed in February, sought to allow investment of public funds in BTC  ( 23 min )

Figment is targeting regional players on Cosmos and Solana networks at a time in which pro-crypto U.S. policy is fueling dealmaking  ( 24 min )

Bitcoin bulls may run into significant selling pressure at around $99,900, on-chain data show.  ( 24 min )

VIRTUAL, the cryptocurrency of the Base-native Virtuals Protocol, has surged 207% in 30 days, outperforming major cryptocurrencies like bitcoin  ( 25 min )

DeFi tokens such as Hyperliquid’s HYPE are up 70% in the past week, a sign of traders favoring fundamentals as capital allocators remain cautious with their money.  ( 27 min )

Bitcoin Core’s decision to lift its long-standing 80-byte OP_RETURN limit has reignited tensions within the network’s developer and node-running communities.  ( 25 min )

"RLUSD is proving their value in real-world applications like donations and large-scale transactions,” an XRP Ledger developer said.  ( 25 min )

The quarterly report in its current form will be sunset with newer versions delivering additional insights to reflect institutional usage of XRP.  ( 26 min )

Experts predict Litecoin to have the best chances of approval by the end of this year.  ( 24 min )

OpenAI could see which types of developers use rival models such as the Meta Llama variants and Anthropic's Claude, and for what purposes.  ( 7 min )

Korl's platform works across multiple systems, using multi-agent and multimodal AI to create highly-customized customer messaging.  ( 8 min )

Ōura, maker of a health-monitoring smart ring, announced that it will use AI to track and analyze two new metabolic health features: meals and glucose.  ( 10 min )

IBM details its plans to help enterprises to actually do more with AI, with an expanded set of agentic AI capabilities.  ( 9 min )

Cisco’s Foundation-sec-8B LLM & Meta’s AI Defenders redefine cybersecurity with open-source AI for scalable SOCs.  ( 9 min )

This is today’s edition of The Download, our weekday newsletter that provides a daily dose of what’s going on in the world of technology. Bryan Johnson wants to start a new religion in which “the body is God” Bryan Johnson is on a mission to not die. The 47-year-old multimillionaire has already applied his slogan “Don’t Die”…  ( 21 min )

On Thursday I watched Daniela Rus, one of the world’s top experts on AI-powered robots, address a packed room at a Boston robotics expo. Rus spent a portion of her talk busting the notion that giant fleets of humanoids are already making themselves useful in manufacturing and warehouses around the world.  That might come as…  ( 22 min )

realme has confirmed that the latest additions to its GT 7 series of smartphones will be launching in Malaysia soon. As you may recall, the base model as well as a newer “T” variant has recently been spotted in SIRIM, indicating their imminent arrival. Meanwhile, the series’ Pro variant had already made its debut locally […] The post realme Teases New GT 7 Smartphones Launching In Malaysia Soon appeared first on Lowyat.NET.  ( 16 min )

Mr. Deepfakes, one of the largest site for nonconsensual deepfake pornography, is shutting down for good. The site recently posted a notice on its site, saying that it has lost the ability to stay open. “A critical service provider has terminated service permanently. Data loss has made it impossible to continue operation. We will not […] The post A Leading Deepfake Porn Site Has Been Shut Down, Forever appeared first on Lowyat.NET.  ( 16 min )

Leaks featuring an alleged prototype of a 360-degree camera by action cam and drone manufacturer DJI have surfaced online. Thanks to tipsters hakasushi and Igor Bogdanov (aka @Quadro_News), details, images and even a Quick Start Guide of the alleged device were shared on X for all to see. Based on the materials provided, the DJI […] The post A Prototype Of DJI’s 360-Degree Camera Leaks Online appeared first on Lowyat.NET.  ( 16 min )

At times, people purchase cars to experience their full performance anywhere and anytime they please. Unfortunately, this wasn’t the case for owners of Xiaomi’s SU7 Ultra owners in China after a recent update had pretty much nerfed its 1,548 HP power output to a mere 900HP. As you’d expect, customers weren’t happy with this decision, […] The post Xiaomi Lifts SU7 Ultra EV’s Performance Restriction After Customer Complaints appeared first on Lowyat.NET.  ( 17 min )

The Technics AZ100 launched earlier this year and serve as the successor to the AZ80 that I reviewed nearly two years ago. Considering how its predecessor wowed from the get-go, I actually started out this review with relatively high expectations. And boy, these earbuds did not fail to impress. What Am I Looking At? Both […] The post Technics AZ100 Lightning Review: The Hard-Hitting Sequel appeared first on Lowyat.NET.  ( 20 min )

Gemini, Google’s AI chatbot, has now received an update allowing users to upload up to ten images per prompt. This will affect Android, iOS, and web users. Previously, the limit for uploaded pictures was one for every prompt. Users who attempted to upload more than one image to Gemini prior to the update would receive […] The post Google Gemini Now Allows 10 Image Uploads Per Prompt appeared first on Lowyat.NET.  ( 15 min )

Infinix is reportedly working on its first ever gaming tablet called the XPAD GT. The brand has yet to officially confirm the arrival of the upcoming device, but it has made an appearance on the SIRIM database, indicating that it will be making its way to Malaysia soon after its unveiling. The XPAD GT was […] The post Infinix XPAD GT Gets SIRIM Certification appeared first on Lowyat.NET.  ( 15 min )

Apple is reportedly planning on bringing back its Smart Battery Case for the iPhone 17 Air, according to a report by The Information. The reintroduction of the accessory may be intended to compensate for the phone’s poor battery life, as it is rumoured to have a battery capacity of between 3,000mAh and 4,000mAh. The Smart […] The post Apple Smart Battery Case May Return For The iPhone 17 Air appeared first on Lowyat.NET.  ( 16 min )

OPPO is reportedly preparing to launch a new budget tablet called the Pad SE. While nothing has been officially announced about the upcoming device yet, it has recently made an appearance on the SIRIM database, signalling its imminent launch in Malaysia. The Pad SE was listed with the model numbers OPD2420 and OPD2419 on the […] The post OPPO Pad SE Appears On SIRIM Ahead Of Launch appeared first on Lowyat.NET.  ( 15 min )

Last year, Maybank announced the addition of a 12-hour cooling-off period for adjustments to online transfer limits. Soon, the bank will be doing the same for reload services, including mobile prepaid plan reloads and game credits with PIN. This naturally also means that these transactions will also get limits when the change takes effect. Per […] The post Maybank To Add Transaction Limit, Cooling-Off Period For Reloads appeared first on Lowyat.NET.  ( 16 min )

The 2025 Malaysian Auto Show (MAS 2025) is just around the corner, and many automakers are preparing to showcase their cars at this grand event. One of them is Zeekr, which recently revealed through a social media post that its 7X model will be making an appearance during the auto show. The Zeekr 7X was […] The post Zeekr 7X Will Be On Display At MAS 2025 appeared first on Lowyat.NET.  ( 17 min )

The iPhone 17 generation is currently slated to be getting a new addition in the form of a supposed Air model. There have been plenty of rumours about it already, months ahead of its scheduled launch. But analyst Ming-Chi Kuo has shared a predicted launch schedule for upcoming Apple phones up until the second half […] The post Analyst: iPhone 19 Air Will Get Screen Upsize; Possibly 6.9 Inches appeared first on Lowyat.NET.  ( 16 min )

Much has been said about the upcoming Samsung Galaxy Z Fold7 and Galaxy Z Flip7 foldables ahead of their scheduled launch in July, including the supposed cameras, dimensions, as well as chipset. This time, the subject matter is the respective battery capacities of the devices. The smartphones have reportedly undergone UL Demko certification in Denmark, […] The post Samsung Galaxy Z Fold7, Flip7 Battery Capacities Leaked appeared first on Lowyat.NET.  ( 16 min )

We recently heard that Apple is adjusting its iPhone launch strategy, and will have a bi-annual release instead, with the Pro models releasing in September, and the base variants coming later. The brand is also apparently planning to launch its first foldable phone next year. While the device was initially assumed to sport a clamshell […] The post Foldable iPhone May Feature Less Creasing, Higher Quality Hinge appeared first on Lowyat.NET.  ( 16 min )

Microsoft officially announced Gears of War: Reloaded. The game is a remaster of the original game and is a celebration of the game’s 20th anniversary in 2026 and will be made available across all platforms and yes, that includes the Sony PlayStation 5 (PS5). “Gears of War: Reloaded is a celebration of one of gaming’s […] The post Microsoft Announces Gears Of War: Reloaded; Heading To PS5 appeared first on Lowyat.NET.  ( 16 min )

Back in December, OpenAI announced that it will be letting the for-profit division of the company become a Public Benefit Corporation, essentially turning the company for-profit. While that is still on track to happen, The company now says that it, as a whole, will remain a non-profit, with the non-profit half being a large shareholder […] The post OpenAI Not Being For-Profit; Non-Profit Division Retains Control appeared first on Lowyat.NET.  ( 16 min )

YouTube is testing a new Premium subscription plan that allows users to share their YouTube Premium or YouTube Music Premium membership with another person in their household. Currently, this option is available to some users in India, France, Taiwan, and Hong Kong. To be eligible for this subscription tier, both users must be at least […] The post YouTube Tests Two-Person Premium Plan In Some Regions appeared first on Lowyat.NET.  ( 16 min )

The government is considering expanding the FLYsiswa initiative to include land transport travel within Peninsular Malaysia. This was revealed by Prime Minister Datuk Seri Anwar Ibrahim during a dialogue session at Management and Science University (MSU) yesterday, responding to a participant who inquired regarding the possibility of introducing subsidised land transport subsidies for students based […] The post Govt Mulls Extending FLYsiswa To Include Land Transport In Peninsular Malaysia appeared first on Lowyat.NET.  ( 15 min )

Edifier has officially released a new pair of desktop speakers in Malaysia dubbed the QR30. The speakers are equipped with controllable LED lighting that can be controlled through an app and come with support for multiple audio input methods for flexibility. First up, the each speaker is equipped with a 0.75-inch silk dome tweeter and […] The post Edifier Introduces QR30 Desktop Speakers With RM699 Price Tag appeared first on Lowyat.NET.  ( 15 min )

Skype has officially joined the ranks of legacy online messengers like ICQ and MSN Messenger, having now been fully discontinued after 23 years of service. Visiting the platform’s website or opening its app now displays a notice encouraging users to switch to Microsoft Teams instead. For those unfamiliar, Skype launched in 2003 and changed ownership […] The post Skype Is Now Officially Offline appeared first on Lowyat.NET.  ( 15 min )

The Linux Foundation’s Decentralized Trust (LFDT) mentorship program is back in 2025 with two exciting opportunities for developers passionate about Ethereum, Android, and the Java Virtual Machine (JVM). Whether you’re a seasoned blockchain developer or an Android enthusiast eager to dive into Web3, these mentorships offer  ( 4 min )

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📌 What is a Mobile Phone Schematic Diagram? A schematic diagram is a graphical representation of an electronic circuit. It shows how components like resistors, capacitors, ICs, and connectors are connected on the board. Helps in diagnosing hardware issues Saves time in troubleshooting Improves your understanding of board-level repair GND (Ground): Usually marked with a downward triangle VCC / VBAT: Main power lines Resistor (R), Capacitor (C), Inductor (L) U, Q, D labels: Indicate ICs, transistors, diodes Start from the battery input, trace the voltage line, check for filters or protection ICs, and identify where the current flow might be interrupted. Use a multimeter alongside the schematic to test continuity and voltage levels on each section of the board. For full tutorials, visual examples, and training resources, visit: 👉 https://www.fixdey.com  ( 3 min )

Introduction In this article, we will explore how to write a SELECT SQL query in Oracle 19c to identify the latest account numbers from specific groups based on the previous account numbers. This technique can be beneficial when managing hierarchical data structures where records are interconnected through identifiers. By utilizing SQL, we can efficiently retrieve the latest entries for each group from a dataset. Understanding the Data Structure The given dataset consists of two columns: Account Number and Previous Number. The Account Number represents the current identifier, while the Previous Number indicates the preceding account number in the group hierarchy. With this structure, we can determine the latest account number for each defined group. To visualize the dataset: | Account Numb…  ( 5 min )

Today's question: Create a React application "Code Review Feedback" that helps in tracking and managing feedback on various aspects of code quality. Solution import React from "react"; const FeedbackSystem = () => { return ( Readability 👍 Upvote 👎 Downvote <p className="my-10 mx-0" dat…  ( 5 min )

Hey everyone! 👋 Improvement of the User Interface Light/dark mode Settings window Added a toolbar to the main page Colored feedback Also, I've made public the repo of the project in case anyone wants to take a detailed look at it: https://github.com/nairec/FitVision 👀 Let's jump right onto it! The start and end detection buttons have been replaced by a toggle start/stop button and an end detection button. class Home(QMainWindow): def __init__(self): ... self.pause_session_button.clicked.connect(self.update_pause_state) self.end_session_button.clicked.connect(self.end_detection) ... class Home(QMainWindow): def initUI(self): self.paused = True self.detection_started = False ... self.end_session_button = QPushButton…  ( 5 min )

Abstract: This post explores the innovative NFT project Moonbirds and its potential as a launching pad for indie hackers. We explain how Moonbirds fuses digital art, blockchain technology, and community engagement to offer diverse opportunities that range from NFT art creation and platform development to augmented reality experiences and education. With a focus on easy-to-understand language, technical insights, and practical examples, this post delves into the background, core concepts, applications, and challenges facing these dynamic digital ventures. Throughout the article, we will also provide useful links and resources to deepen your understanding of this evolving ecosystem. The NFT space has exploded into a vibrant ecosystem where art, technology, and community blend into groundbre…  ( 9 min )

Introduction When it comes to cookie compliance, particularly regarding third-party cookies, having an understanding of how to log and manage these cookies is essential. Many websites are increasingly using cookie compliance scripts that leverage scanning tools to check which cookies are active. If you're looking to create your own scraper to log the cookies on your sites for compliance purposes, you're in the right place! Why Cookie Compliance is Important Cookie compliance refers to the adherence to laws and regulations regarding the use of cookies on websites. With regulations like the GDPR in the EU and CCPA in California, companies must be transparent about the data they collect via cookies, including third-party cookies. Failure to comply can result in significant fines and damage to…  ( 5 min )

Introduction In mid-April, I blogged about leveraging cloud and generative AI to maximize developer productivity. Among other areas, I highlighted the potential of AI in the PR Review/Gitflow process, suggesting tools like Evolua.io or CodeRabbit to offload routine code reviews and low-value fixes to AI assistants. Today, I'm excited to explore Amazon's latest offering in this space: Amazon Q Developer in GitHub, which has just been released in preview. As an AWS Community Builder, I've had early access to this tool for over a week, and I wanted to put it through its paces with a real-world test: Can Amazon Q Developer build a complete AWS SAM application from scratch, based solely on requirements provided in GitHub issues? Before diving into my experiment, let's quickly review how Amaz…  ( 5 min )

🔹 Introduction: Every morning, we grab our phones and open a weather app. But ever since I started my 30-day Linux challenge, I’ve been doing it differently. terminal. Yes, the terminal! if you need an umbrella. 🔹 What You’ll Learn: Check the weather using curl and wttr.in Customize output Add an alias for quick access 🔹 Step-by-Step Tutorial (With Code Blocks) Let’s get into how you can check the weather right from your Linux terminal. No weather apps, no browser — just pure terminal magic. 🧙‍♂️⚡ ✅ Step 1: Open Your Terminal You can open it by pressing: ✅ Step 2: Use curl with wttr.in This command shows you the weather forecast in your current city using the terminal: ✅ Step 3: Check Weather for a Specific City Want to check the weather in Delhi, UK, or USA? Just add the city name: ✅ Step 4: Customize the Output 🎯 Metric Units (Celsius) 🧼 No ASCII Graphics (Plain Output) ✅ Step 5: Create a Weather Shortcut (Alias) Want to type weather instead of writing the full command every time? .bashrc or .zshrc file. In my Case, I'm using .zshrc file. Edit your .zshrc file with nano ~/.zshrc. Add the alias to .zshrc with alias weather="curl wttr.in" Save and exit the editor Press Ctrl + X to exit. Press Y to confirm changes. Press Enter to save the file. To write something in the terminal or display text, you can use commands like: echo: For printing messages. cat >: To write multiple lines into a file. nano: For directly editing files in the terminal. tee: For displaying text and saving it to a file simultaneously. These simple commands let you write, edit, and manage text efficiently from the terminal. #30DaysLinuxChallenge #CloudWhisler DevOps #Linux #RHCSA #Opensource #AWS #CloudComputing Catch out by My LinkedIn profile https://www.linkedin.com/in/rajpreet-gill-4569b4161/  ( 4 min )

Table of Contents Introduction Why Organizations Still Use rsync Understanding rsync and SSH Step-by-Step Guide to Remote Backups Real-World Use Case Summary Backups are essential for any system administrator. While many organizations invest in commercial backup solutions like Veritas NetBackup, Veeam, or Windows NT Backup, there's a simpler, open-source tool that's been trusted for years: rsync. In this article, we'll explore how to use rsync over SSH to perform remote backups efficiently and securely. Despite the availability of commercial tools, many organizations prefer rsync because: Simplicity: Easy to set up and use. Efficiency: Transfers only changed files, saving bandwidth and time. Security: Works seamlessly over SSH for encrypted transfers. Flexibility: Suitable for various b…  ( 4 min )

Profitably Green: How Eco-Centric Entrepreneurs are Revolutionizing the Business World In recent years, a remarkable transformation has swept through the business landscape: the rise of eco-centric entrepreneurs. These trailblazers are not only prioritizing environmental responsibility but are also proving that sustainability and profitability can go hand in hand. As consumers become increasingly environmentally conscious, businesses that embrace green practices are gaining a competitive edge. Let’s explore how eco-centric entrepreneurs are sculpting a greener, more profitable future. Eco-centric entrepreneurship focuses on innovative solutions that address environmental concerns while remaining economically viable. The movement has seen a substantial increase, with many entrepreneurs in…  ( 4 min )

This post is originally posted on my blog here I found it little difficult to run CPP project in vs code always, we need to do lot of configuration, setting to debug the code. Prerequisite Make sure that CPP compiler already installed in your machine, I will use gcc but you can use any other compiler of your choice VS Code should be installed in your machine. (optional) Install plugin "C/C++ Extension Pack" , this will install C/C++ extension and CMAKE (We don't need CMAKE for now, I will write seperate tutorial to build project using CMAKE) I am going to follow below folder structure for my project and will follow same in rest of tutorial to write configuration files Boilerplate │ main.cpp # CPP file contains main function │ └───build # Build file (Executable …  ( 5 min )

Abstract: This post explores how Mintable is revolutionizing the open source ecosystem by harnessing blockchain technology to manage intellectual property, boost developer collaboration, secure software projects, and streamline licensing using NFTs and smart contracts. We delve into blockchain fundamentals, examine Mintable's key contributions, discuss practical use cases, review challenges and limitations, and explore future innovations. The article weaves technical insights with accessible language, offering tables, bullet lists, and authoritative links – including perspectives from both License-Token and dev.to – making it an invaluable resource for developers, project managers, and technology enthusiasts looking to understand this transformative synergy. Blockchain technology has tran…  ( 8 min )

The professional cleaning industry is undergoing a digital transformation thanks to the adoption of smart technology and Internet of Things (IoT) devices. From robotic vacuums to connected scheduling systems, these technologies are significantly improving efficiency, saving costs, and enabling real-time optimization of cleaning resources. In this article, we will explore how connected devices are streamlining resource allocation, inventory control, personnel management, and customer satisfaction in the cleaning services industry. We’ll also embed code snippets in Python and Node.js to demonstrate how you can build and integrate simple IoT monitoring systems for cleaning operations. Traditional cleaning service management relied on manual reporting, static schedules, and basic checklists. T…  ( 5 min )

Abstract: This blog post explores Microsoft's transformative journey into open source, discussing its historical struggle, critical milestones, and current role as a champion of open source innovation. With a detailed examination of core concepts such as Azure–Linux integration, the GitHub acquisition, and strategic partnerships, this article provides technical insights and practical examples. We also explore challenges such as licensing complexities and community skepticism, outline future prospects including blockchain-based sustainability, and highlight related open source funding innovations. For more details on Microsoft’s transformation, check out the Original Article. Over the past two decades, Microsoft has evolved from a staunch defender of proprietary software to an influential …  ( 8 min )

Refact.ai Agent has achieved the #1 score on SWE-bench Lite — solving 179 out of 300 tasks, for a 59,7% success rate. Our approach: fully autonomous AI Agent for programming, no manual intervention needed. SWE-bench Lite is a benchmark that evaluates LLM-based systems on real GitHub issues from popular open-source Python projects. Each task requires applying a bug fix or feature implementation, then validating the result through test execution. This makes the benchmark particularly valuable for understanding how AI tools will perform in actual production environments. Refact.ai Agent takes a fully autonomous, iterative approach. It plans, executes, tests, and self-corrects — repeating steps as needed to reach a single correct solution with no user input. So, the benchmark setup was designe…  ( 6 min )

Introduction When compiling programs in C or C++ using cc or c++, you may find yourself needing to use a different linker than the default one. For instance, your version of GCC or Clang might link against /usr/bin/ld. In many scenarios, developers want to test their applications with alternative linkers, like /usr/local/bin/ld, for various reasons, including performance evaluation or compatibility testing. In this article, we’ll explore how to specify a different linker without running separate compilation steps. Why the Default Linker Matters The linker plays a crucial role in the compilation process, as it's responsible for combining different object files into a single executable. By default, compilers like GCC and Clang use a hard-coded linker, typically located at /usr/bin/ld on Unix…  ( 4 min )

Second highest invoice for each customer Total invoices for each customer per month SELECT DISTINCT Customers.CustomerName, Invoice1.InvoiceId, Invoice1.InvoiceAmount FROM JOIN ON Customers.CustomerId = Invoice1.CustomerId ON Customers.CustomerId = Invoice2.CustomerId Customers.CustomerName, Invoice1.InvoiceId, Invoice1.InvoiceAmount HAVING SELECT CustomerID, FORMAT(InvoiceDate, 'yyyy-MM') AS InvoiceMonth, SUM(InvoiceValue) AS TotalInvoiceAmount FROM Exam.Invoice GROUP BY CustomerID, FORMAT(InvoiceDate, 'yyyy-MM');  ( 3 min )

“The computer industry is the only industry that is more fashion-driven than women’s fashion.” Larry Ellison In our era, the cloud is the haute couture of infrastructure. Everyone wants it. Everyone says you need it. And few ask whether it actually fits. This post is for those who remember that not every problem needs 12 layers of abstraction. It's for careful builders who believe that owning your tools is better than renting your soul. And here are 12 reasons why on-premise will outlast the hype. The cloud sells convenience, but charges premium rent, forever. When you buy servers, you own an asset. When you rent a VM, you feed a meter. The cloud is like living in a hotel room and bragging you don’t have to fix the faucet. Sure, but you’re paying 10× the mortgage and still can’t open a w…  ( 7 min )

Refact.ai Agent has achieved the #1 score on SWE-bench Lite — solving 179 out of 300 tasks, for a 59,7% success rate. Our approach: fully autonomous AI Agent for programming, no manual intervention needed. SWE-bench Lite is a benchmark that evaluates LLM-based systems on real GitHub issues from popular open-source Python projects. Each task requires applying a bug fix or feature implementation, then validating the result through test execution. This makes the benchmark particularly valuable for understanding how AI tools will perform in actual production environments. Refact.ai Agent takes a fully autonomous, iterative approach. It plans, executes, tests, and self-corrects — repeating steps as needed to reach a single correct solution with no user input. So, the benchmark setup was designe…  ( 6 min )

Hey Devs, I’m Harrison G Herdzik — a full-time tech student at Western Connecticut State University and founder of Harrison’s Tech Solutions, a small business offering practical IT support for local clients. Balancing academics, client requests, and business admin might sound chaotic, but I’ve developed a lightweight but effective workflow that keeps me sane and productive. Here’s how I do it — and how you can adapt it to your own side-hustle or service-based business. 🧰 My Tech Stack for Client Management CRM & Task Tracking: Notion Scheduling & Booking: Calendly Remote Support: AnyDesk Invoicing: Wave Communication: Gmail + Google Meet Documentation: Google Docs + Loom for quick video walkthroughs Each tool solves a specific problem. The goal isn’t complexity — it’s clarity and control. **💬 How I Communicate With Clients *Here’s my approach: Keep emails concise but informative Use screen recordings (Loom) when words fall short Set clear expectations and timelines from the start Document every service — even one-off calls That’s something I learned early on: people appreciate clarity, not cleverness. **⏱️ Time Management as a Student & Founder ⏰** Morning:** Classwork, assignments 💻 Afternoon: Scheduled client calls or remote work 📑 Evening: Admin tasks, follow-ups, learning new tech tools By blocking time and batching tasks, I reduce context switching. And if a client emergency comes up? I leave a 1-hour buffer each day just in case. 🚀 Advice from Harrison Herdzik to Aspiring Student Founders Your first client might be a family friend — that’s okay. Document your work. It builds trust and repeat business. Say no to bad fits. Focus on clients you can genuinely help. Keep learning. The tech world changes fast — be ready. Whether you’re offering dev services, IT help, or consulting — your time, your tools, and your tone all matter.  ( 4 min )

Abstract Microsoft Azure is ushering in a new era in digital transactions by expanding its portfolio of blockchain services. This post explores the background of blockchain technology and its transformative potential across industries. We detail Azure’s Blockchain-as-a-Service (BaaS), its developer tools, partnerships, and industry-specific innovations. Alongside practical use cases, we analyze challenges such as regulatory uncertainty and scalability, and we provide forward-looking insights about the trends shaping the future. With tables, bullet lists, and curated links to authoritative sources—from what is blockchain to explorations of blockchain scalability—this article is tailored for both technical enthusiasts and industry professionals seeking clarity and insight into Microsoft’s …  ( 8 min )

Understanding the Issue with Modal Animations If you've ever tried to implement a modal that slides in from the bottom after being triggered by a button, you might have encountered an unexpected behavior when using a element inside your modal dialog. This is a common issue that developers face, especially when working with CSS animations. In this article, we will explore why this issue occurs and how you can fix it effectively. Why Does This Happen? The problem often arises from the way CSS handles layout changes during animations. When the modal is opened, if a button element is included, it may trigger a reflow in the browser’s layout engine. This reflow can result in the appearance of a scrollbar, which disrupts the fluidity of your animation. The pointer-events property combin…  ( 4 min )

Join the Amazon Q Developer "Quack The Code" Challenge: $3,000 in Prizes! dev.to staff for The DEV Team ・ Apr 30 #devchallenge #awschallenge #webdev #ai  ( 2 min )

Quirky Cash: Transforming Offbeat Hobbies into Profitable Side Hustles In today's fast-paced world, finding a side hustle that not only supplements your income but also fulfills your passion is the dream. The monotonous 9-to-5 grind can take a toll, so why not channel your quirky interests into something lucrative? Welcome to the quirky cash revolution, where offbeat hobbies become profitable side hustles! Throughout history, there have been intriguing instances where unusual hobbies have turned into thriving businesses. Here are a few inspiring examples: Soap Sculpting: The humble art of soap carving, once a calming pastime, has captured the interest of niche markets. Custom soap can sell for $20-$50 apiece, especially during festive seasons. Pet Rock Revival: Remember the 1970s Pet R…  ( 4 min )

Last week, breakthroughs surged across artificial intelligence, cloud computing, and quantum technologies, reshaping how developers build, deploy, and envision the future of computing. From Meta’s ambitious bid to democratize powerful AI tools to Google’s massive bet on multi-cloud cybersecurity and IonQ’s groundbreaking quantum network, we’ve seen an electrifying shift: technologies once thought futuristic are rapidly becoming today’s developer toolkits. Here’s why these advancements matter and why tech professionals should pay close attention. AI: Advancements in Models, Tools, and Funding Meta’s LlamaCon empowers open-source AI Meta hosted its first-ever LlamaCon developer conference (April 29th) dedicated to its Llama AI models. Meta announced an upcoming Llama API: a cust…  ( 15 min )

Você já digitou algo em um campo de busca e, a cada letra digitada, uma nova requisição era feita para a API? Isso é ineficiente. A solução? debounce() debounce? É uma técnica usada para adiar a execução de uma função até que um tempo específico tenha passado sem novas chamadas. É muito usado em: buscas dinâmicas (auto-complete) eventos de rolagem (scroll) eventos de resize Imagine um campo de busca que chama a API a cada tecla: function search(term) { fetch(`https://api.exemplo.com/search?q=${term}`) .then(res => res.json()) .then(console.log); } input.addEventListener("input", (e) => { search(e.target.value); }); Isso gera chamadas demais. Agora, com debounce: function debounce(fn, delay) { let timer; return (...args) => { clearTimeout(timer); timer = setTimeout(() => fn(...args), delay); }; } const debouncedSearch = debounce(search, 500); input.addEventListener("input", (e) => { debouncedSearch(e.target.value); }); Agora só é chamada a API depois que o usuário parar de digitar por 500ms. No React, pode usar com useCallback ou bibliotecas como lodash.debounce: import debounce from 'lodash.debounce'; const debounced = useCallback( debounce((value) => { // chamada de API aqui }, 300), [] ); Conta aqui nos comentários como implementou 👇 Ou salva esse post pra usar depois! 🔖  ( 3 min )

Introduction If you're working with Hibernate and querying a DB2 z/OS database, you might have faced a common issue where the generated SQL queries include unnecessary cast statements, especially after upgrading to Hibernate 6. This can cause errors as certain DB2 versions don't support those casts. In this article, we will explore why this issue occurs and provide solutions to remove the cast statements for compatibility with DB2 z/OS. Understanding the Problem In Hibernate, SQL query generation can change between versions due to changes in how Hibernate handles type conversions. After upgrading to Hibernate 6, many users report encountering errors like: Could not convert 'java.lang.Character' to 'java.lang.String' using 'org.hibernate.type.descriptor.java.StringJavaType' to wrap This pa…  ( 5 min )

When working with deeply nested arrays in Laravel, especially when handling configuration files, API responses, or multidimensional data structures, managing or accessing values quickly becomes complex. Laravel’s Arr::dot() method offers a clean, efficient way to flatten these arrays using “dot” notation, making them much easier to work with. In this article, we’ll explore what Arr::dot() does, how it works, and when you might want to use it. The Arr::dot() method in Laravel flattens a multidimensional array into a single-level array using dot notation for keys. This transformation allows you to access deeply nested values with a simple key string. Arr::dot(array $array, string $prepend = '') $prepend: (Optional) A string to prefix each key in the final array. This method is part of Laravel’s Illuminate\Support\Arr helper class. Let’s take a look at a typical example: Input Array $data = [ Applying Arr::dot() $flattened = Arr::dot($data); print_r($flattened); [ 'user.name' => 'John', 1. Configuration Files 2. Localization 3. Form Handling Bonus: Reversing the Flattening $nested = Arr::undot($flattened); Arr::dot() is a small but powerful utility in Laravel that simplifies the handling of complex arrays. Whether you're building APIs, working with config files, or cleaning up nested data structures, this helper can be a time-saver and make your code cleaner and more readable. Next time you're faced with a deeply nested array, consider reaching for Arr::dot() — you’ll appreciate the simplicity it brings.  ( 4 min )

PHP is a server-side scripting language used to build dynamic websites and web applications. It's easy to get started, and learning it can open doors to backend development. This guide walks you through the most effective way to learn PHP from scratch. Before diving in, know what PHP is for: Runs on the server to generate HTML Connects to databases like MySQL Handles form submissions, sessions, and authentication You’ll often use PHP alongside HTML, CSS, JavaScript, and SQL. Install the tools you need: Local server: Use XAMPP, MAMP, or Laragon. These bundles include Apache, PHP, and MySQL. Code editor: Use VS Code, Sublime Text, or PHPStorm. Browser: Chrome or Firefox for testing your output. Once installed, place your PHP files in the correct web directory (usually htdocs/ for XAMPP). St…  ( 4 min )

Observation Study with a User Observation Basics Why, what, where and when to evaluate Observation Metrics and Objectives Evaluation Classes(Components) Study Methods (many) Interviews Forms structured semi-structured unstructured Running an interview Introduction Warm-up Main body A cool-off period Closure Questionnaire System Usability Scale (SUS) NASA Task Load Index (TLX) User Experience Questionnaire (UEQ) THINK ALOUD Preparation (image 1) Perform the study (image 2) Finalize (image 3) WORKLOAD MEASUREMENT Good Workload Measure Criteria Sensitive: Detects task demand changes. Selective: Ignores irrelevant factors. High Bandwidth: Tracks rapid changes. Unobtrusive: Doesn’t disrupt tasks. Reliable: Consistent results. Diagnostic: Identifies workload sources. Assessment Methods Primary Task: Direct performance (e.g., speed, accuracy). Secondary Task: Indirect (e.g., tapping, reaction time). Physiological: ECG, EEG, eye-tracking (needs conditioning). Subjective Ratings: Easy, non-intrusive (e.g., NASA-TLX). NASA-TLX Overview 6 Factors: Mental, physical, temporal demand, effort, performance, frustration. Step 1: Rate each (0–100). Step 2: Pairwise comparisons to weight importance. Final Score: Weighted sum (0–100). Balances subjectivity with structured comparison. OBSERVATION AND ETHNOGRAPHY Participants Study Documentation Study Wrap-Up Study without a User Human Memory and Study Methods  ( 3 min )

Introducción Alguna vez quisiste construir un chat interactivo con un modelo de lenguaje como Llama usando Ollama? En este artículo, te mostraré cómo crear un proyecto full stack que incluye un frontend dinámico y un backend basado en SAP CAP (Cloud Application Programming Model). ¡Vamos a ello! Para instalar Ollama, sigue estos pasos: Ve al sitio oficial de Ollama: https://ollama.com. macOS: Descarga el archivo .dmg y sigue las instrucciones para instalarlo. Windows: Descarga el archivo .exe y sigue las instrucciones del instalador. Una vez instalado, abre una terminal y ejecuta el siguiente comando para verificar que Ollama esté instalado correctamente: ollama --version Deberías ver la versión instalada de Ollama. Si necesitas configurar Ollama para que funcione con tu proyecto, aseg…  ( 4 min )

When I first came across Perplexity AI, I assumed it was just another AI-powered search engine. But after using it in real projects, I realized it can be incredibly helpful when paired with Python, especially for smarter data scraping. If you work with data, automate research, or build anything that involves gathering online information, web scraping is likely part of your workflow. The challenge is that scraping today’s websites is not as easy as it once was. The good news is that tools like Perplexity AI and Crawlbase can make your scraping stack more efficient, intelligent, and scalable. In this post, I’ll walk you through how I use Perplexity AI for web scraping in Python and why combining it with Crawlbase’s scraping API has helped me build more powerful data pipelines. Why Web Scrapi…  ( 6 min )

Hey Dev Community! 👋 I'm excited to share a project I've been working hard on — BeatTheBossGame.com, Ever had one of those days at work where your boss pushes you a little too far? But there's more... 🎮 🧠 What is BeatTheBossGame? 😤 Why I Built This So I turned that emotion into a game. 📱 Android App is Live! ✅ Smooth performance You can download it directly from the website or Google Play https://play.google.com/store/apps/details?id=com.arunantony.beatthebossgame 🏆 Real-Time Leaderboard Track your ranking in real time Compete with other angry clickers across the globe: See how you stack up in CPS (Clicks Per Second) Bragging rights included 🥇 Whether you're crushing the boss or getting crushed, the scoreboard keeps it honest. 🛠️ Tech Stack 🌐 Try It Out! https://www.beatthebossgame.com I’d love your feedback — and if you beat the top score, post a screenshot in the comments! 💬 Let’s Connect Thanks for checking it out! 🙌  ( 3 min )

TL;DR: We built AquaScript to tackle a problem developers face daily — getting realistic, ready-to-use test data without setting up a backend. It’s free, fast, and live. Try it now and streamline your development workflow: Aquascript (Free-Json-API) 🌱 Why We Built AquaScript As devs, we’ve all been there: ✅ Prototyping a frontend but waiting on backend endpoints Enter AquaScript: A blazing-fast fake JSON API that gives developers instant access to clean, categorized, and realistic test data. ✨ What Makes AquaScript Special AquaScript offers a growing library of realistic, categorized data: 📚 Books & BooksV2 (Basic and extended book info) 💬 Quotes & QuotesV2 (Inspirational, funny, and deep quotes) 🎬 MoviesData & MoviesDataV2 (Film titles, genres, ratings, etc.) 😂 Jokes & Programm…  ( 4 min )

TL;DR: We built AquaScript to tackle a problem developers face daily — getting realistic, ready-to-use test data without setting up a backend. It’s free, fast, and live. Try it now and streamline your development workflow: Aquascript (Free-Json-API) 🌱 Why We Built AquaScript As devs, we’ve all been there: ✅ Prototyping a frontend but waiting on backend endpoints Enter AquaScript: A blazing-fast fake JSON API that gives developers instant access to clean, categorized, and realistic test data. ✨ What Makes AquaScript Special AquaScript offers a growing library of realistic, categorized data: 📚 Books & BooksV2 (Basic and extended book info) 💬 Quotes & QuotesV2 (Inspirational, funny, and deep quotes) 🎬 MoviesData & MoviesDataV2 (Film titles, genres, ratings, etc.) 😂 Jokes & Programm…  ( 4 min )

If you've ever spun up a Docker container and wondered how does this thing talk to the internet?, you’re not alone. Docker quietly builds a tiny virtual world behind the scenes — with bridges, fake Ethernet cables (veth), and routing tables. In this post, we'll walk through how Docker’s default bridge network actually works, using a diagram-based example. Ready? Let’s go! 👇 When you run: docker run -d nginx Docker places your container on a network called bridge (unless you tell it otherwise). This bridge is a virtual switch inside your host. Your container: Gets its own virtual Ethernet interface Talks to other containers via the bridge Reaches the outside world via NAT routing Let’s break this down visually. Note: This diagram shows three containers (busybox, nginx, busybox-sec) c…  ( 4 min )

Comprehensive Exploration of the Permissions API for Managing User Consent Historical and Technical Context The emergence of web technologies has ushered in a new era of interactivity and real-time applications. However, with such capabilities comes the critical responsibility of user privacy and consent. The Permissions API was standardized as part of the broader movement to provide enhanced privacy practices on the web, enabling developers to manage user permissions more systematically. The Permissions API was introduced to address the concerns posed by previous blind consent models, which often left users unaware of the degree of access they were granting. Traditionally, permissions like location access, notifications, and camera/microphone use were either all-or-nothing, l…  ( 6 min )

Hi!  ( 2 min )

Explore how halftone effects can be applied using pure SVG filters — no CSS tricks or raster effects. Upload your own image or paste a URL, then switch between two scalable vector halftone styles (half-tone and half-tone-hd). Great for experimenting with non-destructive, resolution-independent image filtering in real time.  ( 3 min )

Creating a multi-page registration form in PHP can be cumbersome, especially when the pages require reloading for navigation. If you're experiencing slow load times with your current method—where each page requires a new HTTP request—you might want to consider converting your form into a Single Page Application (SPA). This approach enhances user experience by loading the HTML just once and using JavaScript to handle navigation smoothly. Understanding the Issue When using multiple pages for form registration, each time a user clicks the 'Next' button, a new HTTP request is sent to the server, which loads a new page. This results in a complete refresh, including reloading CSS, JavaScript, and images, leading to inefficient use of resources and slow loading speeds. A Single Page Application a…  ( 4 min )

I like testing new browsers, these days I use Firefox more than chrome, but I always have Opera and Edge. Today I saw this video https://youtu.be/9YM7pDMLvr4?si=R7X_wdJVqqRB3TNB Andreas explaining what is Ladybird browser and why they are developing it. So I went to https://github.com/LadybirdBrowser/ladybird checked out the code and build it on WSL2 Windows 11, took around 3 hours to compile and finally it worked UI looks similar to Firefox and feels like #Netscape in 1999, and it is developed actively, I hope we have a new and free browser because feels like Firefox is not that free anymore and Google has been too strong on browser market, it would be nice to have a real non-profit browser here. Maybe government/countries should support this kind of organizations otherwise browsers or OSes becoming like citizen monitoring tools and used for profit and manipulation, After we say internet is a human right that human should have the option of non monitored communication use in their home. And in the YouTube video Andreas talks about SerenityOS which looks very similar to Windows 95, good old days. It is a good idea to have unix like OS as desktop. But remember this year is the Linux desktop year :D Reference: https://ladybird.org/ https://serenityos.org/  ( 3 min )

Introduction In frontend development, engineers frequently face the decision of whether to build their own libraries or leverage existing open source solutions. While creating custom libraries can offer certain advantages, the modern development landscape increasingly favors using well-established open source libraries. This article examines both approaches to help teams make informed decisions. Perfect Fit for Your Needs Custom libraries can be designed specifically for your project's requirements No unnecessary features or bloat that comes with generic solutions Ability to make architectural decisions that align perfectly with your stack No Dependency Risks Complete control over updates and maintenance No concerns about open source projects being abandoned Avoid "dependency hell" where…  ( 4 min )

Em janeiro, decidi tirar minha ideia de SaaS do papel. O objetivo? Aprender na prática como levar um produto do conceito à loja. Confesso que foi uma onda de desafios (e ainda está sendo!). Como era meu primeiro projeto, cometi vários equívocos. Eu queria compartilhar alguns abaixo ⤵️ — e como eles estão me ajudando a evoluir: 🔥 Planejamento impulsivo   Fui direto da ideia para a solução, sem mapear etapas ou prazos. Resultado? Retrabalho e ansiedade. Hoje, priorizo ferramentas de gerenciamento e cronogramas flexíveis para manter o foco sem engessar a criatividade. 🔍 Validação superficial   Criei o SaaS para resolver meu problema, mas não validei se era uma dor real do mercado. Consequência? Perdi tempo competindo com soluções já consolidadas. Aprendi que entrevistas com potenciais usuários são tão importantes quanto o código. 💸 Precificação "no feeling"   Foquei em funcionalidades incríveis, mas não pensei em como monetizá-las de forma atraente. Lição? Agora estudo modelos de precificação antes de sair desenvolvendo novas features, usando cases de sucesso como referência. ✨ O saldo positivo?   Esses tropeços me deram algo valioso: clareza. Hoje entendo melhor que errar faz parte do processo — desde que cada erro vire um degrau para iterar. E você? Já passou por situações assim em seus projetos?  ( 3 min )

Please give me tips to help me learn how to make my code better than ever before!!!!???? Please?  ( 2 min )

When developing applications that involve Bluetooth Low Energy (BLE) communication, you might encounter connection issues with certain BLE devices. In this guide, we will focus on troubleshooting a case where one BLE device connects successfully while another fails to establish a connection even after initial setups seem correct. This situation can lead to frustration, especially if logs indicate that connections are attempted but not finalized. Let's explore some common reasons for this behaviour and how to address them effectively. Understanding BLE Connection Process Bluetooth Low Energy (BLE) allows for low-power communication between devices. Each BLE device offers various services and characteristics. Establishing a connection typically involves several steps, from enabling the Bluet…  ( 5 min )

As the DevOps landscape evolves, tracking the right KPIs (Key Performance Indicators) becomes more than a performance metric it becomes a strategy for continuous improvement, team alignment, and business value delivery. In 2025, DevOps is not just about shipping code faster. It's about delivering resilient, scalable, and secure systems while maintaining harmony across development and operations. Here’s a look at the most relevant KPIs DevOps teams should track in 2025 to ensure performance, productivity, and reliability are all on target. Deployment Frequency Why it matters: This KPI measures how often you deploy code to production. High-performing DevOps teams typically deploy multiple times per day. How to improve: •Automate CI/CD pipelines •Embrace feature flags and trunk-based development •Encourage smaller, incremental releases Pro tip: Pair this metric with Change Failure Rate to ensure quality isn't sacrificed for speed. Lead Time for Changes Change Failure Rate (CFR) Mean Time to Recovery (MTTR) System Uptime & Availability Developer Productivity Infrastructure as Code (IaC) Coverage Security Scan Success Rate Final Thoughts Want to dive deeper? Top DevOps KPIs to Boost Your Performance in 2025  ( 4 min )

Hey dev.to! GAEB4Linux, which aims to bring native support for GAEB files (a German construction industry standard) to Linux. GAEB is a widely used XML-based format for exchanging construction data in Germany. It’s essential for things like bills of quantities, tender submissions, costing, and invoicing. There are plenty of GAEB software tools available, but almost all of them are Windows-only or commercial. Linux users in the construction industry currently have no solid open-source solution to handle GAEB files. The goal is to create an open-source GAEB file viewer/editor for Linux (written in Java for cross-platform compatibility). The initial version will support: Viewing GAEB XML files (e.g., .X83, .X84), Entering bid data and prices for tenders, Later stages could include additional features like full AVA (tendering and invoicing) functionality. 🌱 Current Status: Right now, I’m in the early planning phase – no code has been written yet. I’m designing the system, figuring out the core features, and planning how to integrate the GAEB XML structure. Developers familiar with Java, XML, and GUI design (Swing/JavaFX, etc.), Anyone with experience in the construction industry or knowledge of GAEB/AVA workflows, Designers or UX/UI specialists who can help build an intuitive interface, Feedback from anyone who has worked with GAEB or similar standards. I’m planning to host the project on GitLab, and I’ll set up a chat (Discord/Matrix) for discussions and collaboration. Would love to hear your thoughts or suggestions, and I’m open to any tips from anyone who has experience with GAEB file handling. Thanks for reading! —Klaus  ( 3 min )

Google's SGE Is Destroying Traditional SEO - 2025 Survival Guide The Hard Numbers # 2025 SGE Impact Data traffic_drop = 42 # Percentage decrease queries_affected = 68 # Percentage of searches publishers_impacted = 87 # Percentage - Traditional blog format + Discussion-style content with: • Real user testimonials • Expert roundups • Problem/solution framing Case Study: "After converting our API guide to Q&A format, SGE visibility increased 29% while traditional rankings remained stable." Old SEO Approach New SGE Optimization "JavaScript frameworks" "Which JavaScript framework works best for large SaaS applications?" const aiResistantContent = [ 'Interactive code sandboxes', 'Original research studies', 'Step-by-step video walkthroughs' ]; Yes, but focus has shifted to long-tail, problem-solving queries. Most sites report 35-50% drops on informational queries. ⚠️ Dangerous - instead enhance with unique insights and first-hand experience. Want the complete SGE guide? Grab our free 2025 SEO guide.  ( 3 min )

Introduction This article explores the role of AI in the IT industry, highlighting its opportunities and challenges while providing insights into the future of AI in technology. Opportunities of AI in the IT Industry How AI Reduces Manual Work Machine Learning in Cybersecurity AI in Big Data Processing Challenges of AI in the IT Industry Risks of AI in Data Processing AI Talent Gap in the IT Industry Training & Upskilling IT Professionals Dependency on AI & Job Displacement Future of AI in the IT Industry AI & IoT Integration As AI advances, IT companies must balance automation and human expertise, ensuring a future where AI enhances innovation while maintaining ethical standards. FAQs How does AI improve IT security? What are the biggest challenges of AI in IT? Can AI replace IT professionals? What are the ethical concerns related to AI in IT? How will AI shape the future of the IT industry?  ( 6 min )

If you've spent time working with JavaScript's asynchronous model, you know that its single-threaded nature is both a blessing and a curse. On one hand, you don't have to worry about complex locking mechanisms. On the other, you might stumble into weird issues where your code just... never runs. One such issue is starvation. In the context of JavaScript, starvation refers to a situation where a task is perpetually delayed because the event loop is constantly busy with other tasks—usually of higher priority or those scheduled more frequently. Since JavaScript executes code in a single-threaded environment using an event loop, starvation can occur when: Long-running synchronous code blocks the event loop. Microtasks (Promises, MutationObservers, etc.) continuously prevent macrotasks (like se…  ( 4 min )

This guide details the full process for migrating the Application Tier (middle tier) of Oracle EBS R12.2.x to a new Unix/Linux platform while retaining the Database Tier unchanged. 🎯 Objective Current patch levels ✅ Requirements & Restrictions 🛠️ Source System Preparation Step-by-step: echo $FILE_EDITION # should return "run" Apply Required Patches adop phase=apply patches=21255247,22391154 apply_mode=hotpatch adop phase=apply patches=22259926 apply_mode=hotpatch Run AutoConfig sh $AD_TOP/bin/adconfig.sh contextfile= Run adpreclone cd $INST_TOP/admin/scripts perl adpreclone.pl appsTier Update Snapshot via AD Administration Menu: Maintain Applications Files → Maintain Snapshot Information → Update Current View Snapshot → …  ( 5 min )

Expedition 33 publisher: "Elder Scrolls: Oblivion didn’t seem to harm us at all" 35% of Expedition 33 players also played the Elder Scrolls remaster | Publisher Kepler hails Xbox thegamebusiness.com  ( 2 min )

$50 masterpiece in an $80 industry. Cost ≠ Quality - Imgur Discover the magic of the internet at Imgur, a community powered entertainment destination. Lift your spirits with funny jokes, trending memes, entertaining gifs, inspiring stories, viral videos, and so much more from users. imgur.com  ( 2 min )

Creating a login page for your project is essential for user authentication and security. In this article, we'll walk you through the process of adding a SQL-based login page to your existing project. You can access the project at this GitHub link, where the fundamental files are stored. By the end of this tutorial, you'll understand how to implement a basic username and password entry system. Understanding the Importance of User Authentication User authentication is critical for any web application that requires user privacy and data protection. By allowing users to enter their username and password, you can ensure that sensitive information and resources remain secure. Database Setup for Username and Password Storage To add user authentication, we need a database to store the username an…  ( 5 min )

A post by AI News  ( 3 min )

Brave’s Latest AI Tool Could End Cookie Consent Notices Forever “An LLM analyses each site’s content to detect unblocked cookie consent notices and suggests ways to block them.” analyticsindiamag.com  ( 3 min )

Duolingo said it just doubled its language courses thanks to AI | The Verge There are 148 new courses. theverge.com  ( 3 min )

TL;DR: LLMs are great, but they’re not your safety net. Please, for the love of all things holy, test your code. We’re in the golden age of vibe coding. LLMs scaffold our code, fix our syntax, and fill in the blanks. We’re thinking more about architecture and less about syntax—and that’s great. But in all this abstraction, we sometimes skip something essential: testing. AI doesn’t run your code. It doesn't know if that method exists, if that call will throw an error, or if that edge case breaks everything. It’s bluffing with confidence. You can’t vibe your way through correctness. You need tests to know your code behaves the way you think it does. 🛡 Confidence to refactor without fear 🧠 Clarity around what your code is supposed to do 🔄 Continuity when you revisit the code 6 months later 🤝 Collaboration with teammates who now understand the logic A mentor once told me: “Start at the center—your happy case. Then go left, right, and fall off the line.” Say your function expects a positive integer. Start with 42. Then try: 0, -1, Infinity, -Infinity A string ("hello"), a float (3.14), or null Now take it further: What if the parameters are undefined? What if the database call fails? What if the API returns malformed or missing data? What if a field you depend on is null? The real world is messy. Your tests should be ready for that. As we stop writing every line ourselves, we need to start questioning every line more. AI will get you to “working”—but testing gets you to “works when it matters.” AI bluffs. Don’t let it bluff you into a broken release.  ( 3 min )

Trailblazers and Innovators: How Tech Titans Redefine Leadership and Spur Global Innovation Introduction In the fast-paced world of technology, certain individuals stand out as trailblazers and innovators. These tech titans not only redefine leadership but also drive global innovation with unprecedented fervor. From Elon Musk to Sundar Pichai, their unique approaches and visionary ideas continue to shape the digital landscape. Tech titans have redefined what it means to be a leader in the 21st century. Gone are the days of conventional top-down management. Here’s how they lead: Visionary Thinking: Leaders like Elon Musk thrive on ambitious goals. Musk's work with SpaceX and Tesla exemplifies how visionary thinking catapults industries forward, from reusable rockets to electric…  ( 4 min )

Crossing the future easily with Smart Cross  ( 2 min )

Grumphp es un orquestador que permite configurar el uso de herramientas de código estático para PHP. Hasta hace relativamente poco tiempo he usado W4D como entorno de desarrollo en mis proyectos, pero hace un año me tocó probar Ddev para un proyecto y desde entonces me enamoré de todo lo que aporta este software. Ahora toca migrar proyectos que tengo con W4D a Ddev y una de las cosas que toca migrar es Grumphp. Para instalar Grumphp yo uso el paquete de Carcheky que está preparado para funcionar con Drupal y luego lo personalizo. Ejecuto el siguiente código para instalar el paquete: composer config extra.grumphp --json '{"config-default-path": "vendor/carcheky/drupal-grumphp/configs/grumphp.yml"}' ; composer require --dev carcheky/drupal-grumphp -W Una vez instalado copio el archivo grumphp.yml que se encuentra en vendor/carcheky/drupal-grumphp/configs/grumphp.yml a la misma altura del archivo composer.json En el archvio composer.json busco la configuración de grumphp y actualizo config-default-path de la siguiente manera: "grumphp": { "config-default-path": "grumphp.yml" } En el archivo grumphp.yml que hemos copiado a la raíz del proyecto buscamos la configuraciónde git_hook_variable y lo actualizamos de la siguiente manera: git_hook_variables: EXEC_GRUMPHP_COMMAND: ddev exec php Por último en la consola ejecuto el siguiente comando para actualizar la configuración del hook pre-commit ddev exec grumphp git:init De esta forma actualizaremos el hook pre-commit de nuestro proyecto (los hooks pre-commit están en la ruta '/.git/hooks/pre-commit`y el archivo queda así: `bash DIFF=$(git -c diff.mnemonicprefix=false -c diff.noprefix=false --no-pager diff -r -p -m -M --full-index --no-color --staged | cat) export GRUMPHP_GIT_WORKING_DIR="$(git rev-parse --show-toplevel)" (cd "./" && printf "%s\n" "${DIFF}" | ddev exec php 'vendor/bin/grumphp' 'git:pre-commit' '--skip-success-output') `  ( 3 min )

📘 Why This Blog? When I first encountered the Builder Design Pattern, it felt over-engineered—like too many classes just to build an object! clicked. This devblog is my honest take on helping you understand the Builder Pattern—the way I wish someone had explained it to me. The Builder Pattern helps construct complex objects step by step. In simple terms: You control the construction process, one method at a time. You might be looking at a Builder Pattern if you see: A class with many constructor parameters (some optional). Code like: IUser user = new User.Builder().setName("Alice").setAge(30).build(); A nested static Builder class or a separate builder class that returns the same object. public class User implements IUser { private final String name; private final int age; …  ( 4 min )

Written by David Omotayo✏️ The React compiler is one of the biggest updates to the React framework in years. Last year, the React team released a beta version. Around that time, I wrote an article called “Exploring React's Compiler: A Detailed Introduction”. It unpacked the core idea behind the compiler and showed how it could improve React development by automatically handling performance issues behind the scenes. When the beta dropped, the React team encouraged developers to try it out, give feedback, and contribute. And many did. A standout example is Sanity Studio. They used the compiler internally and shipped libraries like react-rx and @sanity/ui that are optimized for it. Thanks to contributions like these, the React team officially released the first Release Candidate (RC) on Apr…  ( 10 min )

📘 Series: Becoming a Great Product Manager Chapter 5: Cross-Functional Teamwork Done Right Being a product manager means wearing many hats, but it never means working alone. The success of your product depends on how well you collaborate with designers, developers, QA, marketing, and more. In this chapter, we’ll break down what cross-functional collaboration looks like when it’s done right and how you can foster it on your team. Great PMs don’t just coordinate. They listen, learn, and empathize with every function. Understanding the goals and constraints of each role builds trust and leads to better decisions. Example: Your designer is pushing back on adding another button to a crowded screen. Instead of insisting, you ask about the visual hierarchy and UX implications. …  ( 5 min )

Ever felt like you're drowning in data? You're not alone. In today's digital world, applications generate and consume information at an unprecedented rate. Choosing how and where to store that data in the cloud is one of the most fundamental – and often confusing – decisions architects and developers face. Pick the wrong type, and you could end up with slow performance, skyrocketing costs, or an architecture that just doesn't scale. You look at the AWS console, and the options seem endless: S3, EBS, EFS, FSx... what's the difference, and when should you use each? It feels a bit like walking into a massive hardware store looking for a screw – you know you need something to hold things together, but the sheer variety of options is overwhelming. (Intro/Hook: Relatable problem - data deluge an…  ( 9 min )

1. defer: Cleanup with Guaranteed Execution What it does: Runs a function after its parent function finishes. package main import "os" func main() { file, _ := os.Open("data.txt") defer file.Close() // Deferred cleanup } Memory Segmentation +-------------------+ Lowest Address | Code | |-------------------| | main() | // Compiled instructions | os.Open() | // File-opening logic | file.Close() | // Cleanup instructions +-------------------+ | Data | |-------------------| | "data.txt" | // Filename (immutable) +-------------------+ | Stack | |-------------------| | main() frame | | file (pointer) →| // Points to OS resource +-------------------+ | …  ( 4 min )

Have you ever opened a massive codebase and wished you could jump straight to the definition of a function, class, or variable without scrolling endlessly? That's exactly what CTags is for. In this post, we’ll break down what CTags is, how to use it, and—most importantly—how to read a tags file CTags (short for "C Tags") is a tool that scans your code and generates an index of where functions, variables, classes, and other identifiers are defined. This index is saved in a file called tags. Suppose you have this simple math_utils.py file: def add(a, b): return a + b def subtract(a, b): return a - b Run this in your terminal: ctags -R . You’ll now see a file called tags in your directory. tags File? Here’s what it might look like: add math_utils.py /^def add(a, b):$/;" f s…  ( 4 min )

Have you ever wanted to notify users when they lose internet connectivity in your React app? Today we build AppShell component together that monitors the browser's online/offline status and shows a user friendly message when the user goes offline. Realtime apps (like chat, stock tickers, etc.) depend on live connectivity. Offline-friendly experiences build trust and reliability. It's surprisingly easy to implement. Lets Wrap the entire app (or any major layout component) with AppShell: navigator.onLine: Detects the initial connection status. window.addEventListener("online"/"offline"): Reacts to changes in network status. useEffect: Registers and cleans up event listeners when the component mounts/unmounts. Let me know how you're handling offline states in your apps :)  ( 3 min )

Developers will be able to use Apps Script to create their own custom Workspace Flows triggers and actions. #googlecloudnext #googleworkspace #appsscript Follow youtube.com/@googleworkspacedevs  ( 4 min )

Introduction If you're new to Angular and transitioning from server-side development, one common challenge is configuring your application to dynamically connect to your Spring REST API. While hardcoding URLs might be the simplest immediate solution, it often causes issues when deploying to different environments. In this article, we will discuss various approaches to effectively manage API URLs in your Angular application, ensuring a smooth deployment process. Understanding API URL Management When building applications that interconnect with REST APIs, it's crucial to manage API URLs efficiently. Typically, during development, you'd use one server endpoint (localhost), while production might require a completely different URL. Hardcoding API endpoints makes it challenging to adapt to thes…  ( 5 min )

Closures in Go are powerful but come with hidden memory implications. By capturing variables from their surrounding scope, they force the compiler to decide: Should these variables live on the stack or heap? Let’s dissect real-world examples to see escape analysis in action. The Code package main func counter() func() int { count := 0 // Escapes to heap (captured by closure) return func() int { count++ return count } } func main() { // Closure captures heap-allocated variable c := counter() println(c()) // 1 println(c()) // 2 // Loop closure pitfall var funcs []func() for i := 0; i < 3; i++ { funcs = append(funcs, func() { println(i) // i escapes to heap…  ( 4 min )

Go’s functions are deceptively simple. Features like multiple returns and named returns feel ergonomic, but they quietly shape how memory is allocated and managed. Let’s dissect their impact on stack frames and uncover when the heap sneaks into your function calls. The Code package main // Multiple returns (stack-allocated) func sumAndDiff(a, b int) (int, int) { return a + b, a - b } // Named returns (stack by default, heap if escaped) func calcTax(price float64) (tax float64, err error) { tax = price * 0.07 return // Implicit return } // Heap escape: returning a pointer to a stack variable func riskyCalc() *float64 { result := 42.0 // Escapes to heap (returned pointer) return &result } func main() { sum, diff := sumAndDiff…  ( 4 min )

It all started back in 3rd sem — during one of my computer lab session. My friend had just executed his code — and it worked perfectly. So what happened? He had to log into Gmail on the lab PC That’s when I had this thought: Googled and found already existing ones like dontpad So, for the next couple of weeks, all of us started using dontpad — mostly just copy-pasting code, sharing it as soon as someone got it working. Whoever cracked the problem first would dump the code there, and the rest of us would just grab it and run. Then one day, I was sitting in class and noticed how our teacher logged into her Gmail just to download a PPT and present it to the class. That moment stuck in my mind — but I got busy with other things and didn’t think much of it. A few days later, one of our teachers…  ( 4 min )

Tired of staring at a loading spinner while the AI thinks? Wish you could just yell "Stop!" when it goes off track? This guide shows you how to get AI answers *instantly by streaming LLM responses word-by-word, and cut them off anytime, using a simple PocketFlow LLM Streaming Example.* We've all been there. You ask an AI a question. You wait. Maybe it's brilliant, maybe it's... weird. What if you could see the answer appear as it's typed and hit an "eject" button if it's not what you want? That's LLM Streaming (seeing it live) and User Interruption (hitting stop). Instead of getting a whole essay dropped on you, text pops up piece by piece. It feels way faster. Plus, the stop button puts you in charge, saving time and maybe even cash on API calls. What you'll learn in this easy guide: Wh…  ( 10 min )

Aunque la idea de un marketplace de temas de Drupal me parece buena y creo que puede ser un buen impulso para Drupal como producto y, por lo tanto, para la comunidad de Drupal, estas son mis dudas, miedos, o todo junto y mezclado. Cuando hablamos de un marketplace de temas de Drupal, me viene a la cabeza el marketplace de WordPress. Es cierto que ese marketplace funciona bien y posiblemente haya sido uno de los éxitos de WordPress para ser el producto que es hoy en día, ya que permitía a una persona sin conocimientos técnicos tener una página web bonita y operativa. Pero tenemos que tener en cuenta lo siguiente: un porcentaje elevado de sitios construidos con WordPress usan únicamente los dos tipos de contenidos que vienen por defecto en WordPress: página y blog. Tener una arquitectura de …  ( 4 min )

Yo, Guys! mari mabar. Jadi gini, pas kita lagi ngoding aplikasi, mau itu web app, mobile, atau bikin API pasti bakal ada momen kita nerima input dari user, kan? Entah itu form registrasi, data login, upload file, atau apa pun lah. Nah, data yang masuk ini nggak bisa langsung kita percaya gitu aja. Sebelum diproses atau dilempar ke database, kita wajib pastiin dulu datanya itu valid, lengkap, dan formatnya sesuai sama yang kita harapkan. Proses ini, ya kalian udah tau lah, namanya Validasi Data. Tapi sering banget muncul pertanyaan klasik nih di kalangan developer, termasuk kita-kita: "Bro, validasi di frontend aja cukup nggak sih? Kan udah dicek di browser user. Atau mending di backend aja biar lebih secure?" 🤔 Simple answer: Nggak cukup satu, Guys. Harus dua-duanya. Validasi itu kudu jal…  ( 6 min )

Incidents in cloud and SaaS tools block users just as hard as faults in your own code. The fix comes faster when the same on-call queue covers both. IsDown now plugs straight into Better Stack through a native API connection. Every outage that IsDown detects shows up as an incident in Better Stack, follows your existing escalation rules, and clears automatically once the vendor recovers. Vendor downtime seldom triggers your own uptime probes—the traffic never reaches you. IsDown closes that gap by checking hundreds of official status pages round the clock. When those signals land inside Better Stack, responders work from a single incident list. No tab-hopping, no split workflows. A shared queue also tightens communication. Stakeholders follow one channel, post-mortems cover both internal a…  ( 4 min )

** ** What is data? Data, in its simplest form, is raw, unprocessed facts and figures. It can be numbers, text, images, or any other form of information that can be stored and processed by computers. Data becomes meaningful information when it is analyzed, interpreted, and placed in context. Therefore, Data is the basic unit of information before it's been organized, analyzed, or interpreted. What is information? In data science, splitting your dataset effectively is an important initial step towards building a robust model. Generally, you'll want to allocate a larger portion of your data for training, very often around 70%-80%, with the remaining 20%-30% for testing. This allows the model to learn from a substantial amount of data while still retaining enough unique data points to test …  ( 8 min )

This is a submission for the Amazon Q Developer "Quack The Code" Challenge: Exploring the Possibilities This project demonstrates how to create a .NET application that sends messages to Amazon SQS with multi-region capabilities, allowing it to be agnostic about which regional SQS endpoint the message is being sent to. The routing is controlled via Amazon Route53 weighted routing rules, enabling seamless failover between regions. Amazon SQS is a regional service, but many applications require multi-region resilience. This project demonstrates how to achieve global availability for SQS, similar to what AWS has already implemented for services like: Amazon S3 Global Accelerator: Provides global endpoints that route to the nearest regional bucket Amazon EventBridge Global Endpoints: Enables mu…  ( 5 min )

This is a little program that I made as apart of project on Codecademy. The logic and search process is super simple. I am still pretty proud as i'm barely learning c++. I was just wondering how I could make the search much more efficient or even the program as a whole. This is the code I wrote. bool contains_target(const std::string& word, const std::string& target){ int word_length = word.length(); int target_length = target.length(); if(target_length > word_length) { return false; } for(int i = 0; i <= word_length - target_length; i++){ if(word[i] == target[0]){ std::string sub = word.substr(i, target_length); if(sub == target){ return true; } } } return false; }  ( 3 min )

Recently, I ran into a pretty common problem while working on a Spring Boot project with SonarCloud: test coverage wasn't being reported correctly. Even though my tests were running fine, SonarCloud was showing 0% coverage. 🤯 After digging through the docs and trying different configurations, I finally got everything working. Here's exactly what I did, in case it helps you too. mockito-inline dependency One issue I had with Mockito was mocking final classes or static methods. To solve this, I added the following dependency to my pom.xml: org.mockito mockito-inline 5.2.0 test The JaCoCo plugin needs to be configured correctly to generate the jacoco.xml file, which is …  ( 4 min )

100DaysofCode - Day 16: Today, I started working on Python projects on FreeCodeCamp.org to practice what I’ve learned so far. In 2–3 days, I’ll begin learning HTML, which will open the door to web development—a key skill for many tech roles, including AI and app development.  ( 2 min )

The Remote-Preneur Reality: What Most Developers and Freelancers Don't See Coming Matt Johnson ・ May 5 #remotework #entrepreneurship #productivity #freelancing  ( 2 min )

TS1436: Decorators must precede the name and all keywords of property declarations TypeScript is a robust, statically-typed programming language designed as a superset of JavaScript. Simply put, it enhances JavaScript by adding type definitions (a way to explicitly define the type of values) and other powerful features like interfaces, enums, and decorators. This makes it easier to work with larger codebases and prevent runtime errors by catching issues during the compile time. For those just starting out, think of TypeScript as a tool that adds structure and safety to JavaScript without changing its core nature. If you're building complex applications or working in a collaborative team, TypeScript helps make your code predictable, maintainable, and scalable. Type definitions form the c…  ( 6 min )

🚀 Have you ever wondered when you open up any program like VLC Player (music player) What happens? How it comes on your PC's screen? How it uses your resources and runs on your machine? Well, there are many workers who are responsible of running a process. 📔 But wait before starting anything, what is a program and process ? Whenever someone writes code lines in a file (let say java) which we call a set of instructions class Test { public static void main (String[] args){ System.out.println("Hello world"); } } Above code written is nothing but we are trying to tell the computer that load the Test class, call the main() method and print "Hello world" on our screen. Now this set of instructions File is called a program (a fancy word) and when we run (execute) our progra…  ( 7 min )

This is the part 2 of the blog covering switch expressions in Java. If you haven't read part 1 yet, please give it a read here as it would cover some of the basic understanding of the switch expression and pattern matching in switch. Java compiler doesn't force exhaustiveness in switch statements, whereas switch expression are expected to be exhaustive. What really is exhaustiveness? Exhaustiveness ensures that all possible cases are handled in a switch expression, either explicitly or with a default case. For example, When you use an enum type, switch must cover different values of the enum. This is not limited to enums, its applicable to all the types switch supports. Look at the below versions of code, former one with switch statement and the later with switch expressions. This snippet…  ( 6 min )

Welcome to the Future, Where Databases Have Superpowers Hey there, fellow code wrangler! 👋 Remember when databases were just boring tables of data? Well, buckle up, because we're about to dive into the world of vector databases – the cool kids on the block that are making AI-powered search feel like magic. But don't worry, I promise not to make your brain ooze out of your ears. Let's keep it fun, shall we? Imagine you're at a party (yes, developers do attend parties occasionally), and you're trying to find someone who shares your passion for obscure 80s sci-fi movies. In a regular database, you'd have to go person by person, asking, "Do you like 'Buckaroo Banzai'?" Exhausting, right? Now, picture a party where everyone's interests are floating around them like colorful bubbles. You just…  ( 5 min )

This diary-tutorial hybrid tracks my first months with Google’s Agent Development Kit (ADK) — pure experience, insight sharing, and nothing else. The ADK is Google’s open-source framework for designing, chaining, and shipping autonomous AI agents. If you are unfamiliar with this framework, read my beginner guide to build AI agents quickly. You don’t need many AI agents, one for each task. An agent can call as many tools as it needs. AI independently decides what tool it should use and when. Write a precise prompt and correctly declare what tools AI can access and when it should be used. You should care what you save in the session state. AI agents could save the output to the session state, and different agents in your AI pipeline could access it. While developing, you should navigate to t…  ( 5 min )

If your organization relies on software to deliver value, APIs are already at the epicenter of your digital infrastructure. They connect your systems, enabling you to scale through integration and automation and deliver superior customer experiences. But what’s often overlooked is that APIs are only as reliable as your ability to test them effectively. Unlike traditional UI testing, which focuses on the frontend layer, testing them gives you visibility into the actual mechanics of your app—the business logic, the rules that drive decisions, and the integrations that connect your systems. If you don’t validate that layer thoroughly, you leave core functionality exposed, increasing security risk. In this blog post, we’ll explore API testing in detail: its types, benefits, prerequisites, best…  ( 11 min )

Learn how Support Vector Machines find the optimal hyperplane to classify complex data with precision and power. In the era of ever-growing data, choosing the right algorithm to make sense of it all is crucial. One such powerful and versatile tool is the Support Vector Machine (SVM) — a supervised learning model known for its ability to classify complex datasets with remarkable accuracy. In this blog, we’ll break down how SVMs work, the intuition behind them, their mathematical foundations, and how you can implement them in real-world applications. Whether you're just starting with machine learning or looking to solidify your understanding, this guide will equip you with the essentials. This simple yet powerful concept forms the foundation of SVMs. By maximizing this margin, SVMs achieve …  ( 6 min )

As part of the Google GenAI Exchange Program, I completed the course "Inspect Rich Documents with Gemini Multimodality and Multimodal RAG", which dives into the power of multimodal AI for document inspection and analysis. Gemini Multimodality combines the capabilities of language models with image and document analysis, enabling AI to understand not just text, but images and other media within documents. The course introduced me to Multimodal RAG (Retrieval-Augmented Generation), a method that enhances AI’s ability to retrieve and generate information from multiple sources, making document inspection smarter and more efficient. Through this course, I learned how to apply these techniques for document parsing, intelligent search, and extracting insights from complex datasets. By integrating Gemini’s multimodal capabilities, I can now inspect and analyze rich documents, unlocking new possibilities in document automation, content generation, and knowledge extraction.  ( 3 min )

I'll start this post by saying that it's been a while since we got the first version of the CRON, which became de facto a default task scheduling tool for developers. Even more, cron jobs are older than me and I'm not that young. When I first got into software development, we used to deploy our code on EC2 instances and have a minimal continuous delivery setup realized via webhooks that triggered the git pull command and restart nginx, but we also had a bunch of recurring tasks That had to be invoked at midnight (classic example). Some of them had to run every couple of minutes. I remember learning the cron syntax at that time, it felt almost like RegExp, but surely, it was 1000 times easier, however, this is not what I want to talk about. Over time, a lot of tools that I used for softwar…  ( 7 min )

I recently completed the "Develop GenAI Apps with Gemini and Streamlit" course as part of the Google GenAI Exchange Program. This course focused on building interactive, user-friendly GenAI applications by combining Gemini, a powerful language model, with Streamlit, a framework for quickly developing web apps. Through hands-on practice, I learned how to integrate Gemini’s natural language understanding capabilities into Streamlit apps, enabling them to generate dynamic and relevant responses. Streamlit made the process of building these applications faster and more intuitive by offering simple tools to create interactive user interfaces. By the end of the course, I gained the skills to deploy AI-powered apps that can handle user input, process data, and generate real-time results—all with minimal code. This has opened up new possibilities for creating intelligent, real-world applications that leverage the power of Gemini and Streamlit.  ( 3 min )

The Remote-Preneur Reality: What Most Developers and Freelancers Don't See Coming Matt Johnson ・ May 5 #remotework #entrepreneurship #productivity #freelancing  ( 2 min )

We're pleased to announce the release of Neural DSL v0.2.9, which includes an early preview of Aquarium IDE, a new development environment for neural network design. This initial release provides basic visual tools for network design and integrates with Neural's shape propagation system. "Aquarium IDE is our first step toward making neural network development more visual and accessible. While still in early development, we believe this approach will help both beginners and experienced developers better understand their network architectures." — Neural DSL Team Aquarium IDE is a new development environment for neural network design that we're releasing as an early preview. In this initial version, it provides a basic visual interface for designing simple neural networks and viewing tensor s…  ( 6 min )

Originally published at ssojet Slack's Developer Experience (DevXP) team recently implemented significant optimizations to their end-to-end (E2E) testing pipeline, achieving a 60% reduction in frontend build frequency and a 50% decrease in overall build time. These enhancements streamline the continuous integration and deployment (CI/CD) process, allowing engineers to iterate rapidly and efficiently. Slack's existing repository utilizes a CI/CD pipeline that runs E2E tests prior to merging code into the main branch. This process validates changes across the entire application stack, including frontend, backend, and database. However, the team found that frontend builds occurred even when no frontend-related changes were made, leading to unnecessary long build times and resource consumptio…  ( 5 min )

TL;DR: tool for robust embedding creation and management—is now available as a Python CLI and library, making it compatible with any Postgres database, whether it be self-hosted Postgres or cloud-hosted on Timescale Cloud, Amazon RDS for PostgreSQL, or Supabase. This expansion comes directly from developer feedback requesting broader accessibility while maintaining the Postgres integration that makes pgai Vectorizer the ideal solution for production-grade embedding creation, management, and experimentation. To get started, head over to the pgai GitHub. When we first launched pgai Vectorizer, we aimed to simplify vector embedding management for developers building AI systems with Postgres. We heard the horror stories of developers struggling with complex ETL (extract-transform-load) pipel…  ( 7 min )

AI agents are becoming an essential part of modern software systems. They can take user input, reason through goals, and interact with external services to complete real tasks. This makes them useful for building workflows, automation, and product features powered by language models. To support this, OpenAI introduced the Agents SDK on March 11, 2025. The SDK provides a way to define agent behavior, connect to external tools, and manage the flow of actions. They ahve also extended the support for MCP recently. Tools are exposed through MCP (Model Context Protocol), a standard interface that lets agents discover and call functions from any compatible server. Today, we will use the OpenAI Agents SDK to build a working Composio MCP agent. The goal is to show how agents can be connected to re…  ( 10 min )

“Great logs don't just tell you what went wrong — they help you understand why it happened.” Whether you're automating a deployment or writing a bash script to clean up temp files, there's one thing your future self will always thank you for: clear, timestamped, consistent logging. Shell scripts often get the job done fast — but when they go wrong, debugging them can feel like trying to read hieroglyphics in the dark. Logging provides a flashlight. It tells you what ran, when it ran, and how it ran — especially when you're not watching. This post walks you through a compact, reusable logger function for your shell scripts that: Categorizes messages by severity (INFO, DEBUG, ERROR, etc.) Automatically timestamps log entries Writes to a dedicated log file Here’s the complete snippet of the …  ( 4 min )

Imagine a Toddler and Their Toys Now imagine someone asks the toddler to also solve a big puzzle. If the toddler starts working on it alone, they’ll stop playing with their other toys until it’s done. This is similar to how Node.js blocks the event loop during a heavy task. Bringing in the Siblings – The Child Processes Technical View const { fork } = require('child_process'); const child = fork('heavyTask.js'); child.on('message', (msg) => { console.log('Message from child:', msg); }); child.send({ task: 'start' }); Summary Would you like a visual diagram of this toddler analogy?  ( 3 min )

The Scanner class in Java is part of the java.util package and is used to read input from various sources like the keyboard, files, or strings. It provides methods to parse primitive types (int, double, etc.) and strings using regular expressions. 1. Importing the Scanner Class To use the Scanner class, you need to import it: import java.util.Scanner; 2. Creating a Scanner Object You can create a Scanner object to read input from different sources: Read from System.in (Keyboard Input) Scanner scanner = new Scanner(System.in); Read from a File Scanner fileScanner = new Scanner(new File("input.txt")); Read from a String Scanner stringScanner = new Scanner("Hello World 123"); 3. Common Scanner Methods The Scanner class provides various methods to read different types …  ( 4 min )

Introduction Upgrading an application to .NET Core 3 often brings a variety of enhancements, one of which is the option to publish a single-file executable. While this has its advantages, many developers encounter path-related issues during the build process, particularly related to the PublishSingleFile flag. This article addresses a common problem where the executable path defaults to a temporary directory, disrupting access to vital resources. Understanding the Issue When you set the PublishSingleFile flag, the .NET runtime modifies how executable paths are resolved. Instead of locating the executable file in its original directory, it often redirects to a location like /var/tmp/.net/. This behavior occurs due to the way the runtime handles unpacking the single-file executable at runtim…  ( 5 min )

Arrays are fundamental data structures in Java that store multiple values of the same type in a single variable. Fixed size: Once created, the size cannot be changed Indexed: Elements are accessed by their index (starting at 0) Homogeneous: All elements must be of the same type Contiguous memory: Elements are stored in consecutive memory locations // Different ways to declare arrays int[] numbers1; // Preferred syntax int numbers2[]; // Alternative syntax (less common) // Creating arrays with size int[] numbers = new int[5]; // Array of 5 integers (initialized to 0) // Creating and initializing in one line String[] names = {"Alice", "Bob", "Charlie"}; int[] numbers = {10, 20, 30, 40, 50}; // Accessing elements System.out.println(numbers[0]); // Output: 10 System.out…  ( 3 min )

Corre tus tareas recurrentes con Sidekiq Luis Porras for WebdoxCLM ・ Jun 7 '21 #ruby #rails #tutorial #redis  ( 2 min )

Exceptions in Java are events that disrupt the normal flow of a program's execution. They are used to handle errors and other exceptional events that may occur during runtime. Checked Exceptions (compile-time exceptions) Must be declared or handled (using try-catch or throws) Examples: IOException, SQLException, ClassNotFoundException Unchecked Exceptions (runtime exceptions) Not checked at compile time Examples: NullPointerException, ArrayIndexOutOfBoundsException, ArithmeticException Errors Serious problems that applications should not try to catch Examples: OutOfMemoryError, StackOverflowError Exception Handling Keywords try: Block of code to monitor for exceptions catch: Block that handles the exception finally: Block that always executes (for cleanup) throw: Used to explicitly throw an exception throws: Declares exceptions that might be thrown by a method try { // Code that might throw an exception int result = 10 / 0; // This will throw ArithmeticException } catch (ArithmeticException e) { System.out.println("Cannot divide by zero!"); } catch (Exception e) { System.out.println("General exception caught"); } finally { System.out.println("This will always execute"); } You can create your own exception classes by extending Exception (checked) or RuntimeException (unchecked): class MyCustomException extends Exception { public MyCustomException(String message) { super(message); } } Catch specific exceptions rather than general Exception Don't ignore caught exceptions (empty catch blocks) Use finally blocks for resource cleanup Document exceptions with @throws in JavaDoc Consider whether to handle, propagate, or convert exceptions Would you like more details on any specific aspect of Java exceptions?  ( 3 min )

Overview See how MDX solves the problem of writing extremely long pages or articles. In this article, we will show you how MDX can be a powerful solution to speed up the documentation creation process. Have you ever seen a very common problem in many companies, such as outdated documents? Well, in a world where maintaining documents such as policies and privacy, terms and security is crucial. At the same time, having to deal with the fact that you will have to spend precious time writing N pages that have already been written in a document like Word or PDF to an HTML, JSX or TSX page does not seem very pleasant or very smart. Finding efficient ways to create and maintain documents becomes essential. One of the biggest challenges in creating documentation is the time spent retyping conten…  ( 7 min )

Intro Happy revenge of the fifth! This week, I've been working with Python as I learn more about Machine Learning. I thought it'd be a good idea to put together a cheat-sheet that summarizes some of the things I've learned so far. This is a work in progress, and I will be adding more to it as I learn more. Comments, variable assignment, adding, conditionals and printing. rarecandy_count = 0 print(rarecandy_count) # Found 4 more Rare Candy while exploring Route 119 rarecandy_count = rarecandy_count + 4 if rarecandy_count > 0: print("Sweet! Time to grind some levels.") battle_cry = "Pika! " * rarecandy_count print(battle_cry) Output: 0 Sweet! Time to grind some levels. Python follows PEMDAS (Parentheses, Exponents, Multiplication and Division, Addition and Subtraction) order of ope…  ( 9 min )

TLDR: I've tried to optimize my MacOS setup for my personal & work use. The setup uses Karabiner to setup: Karabiner config file: https://pastebin.com/awRX1kE7 For someone who spends many hours at their computer for their day job it's important that you get comfortable with your setup. One portion of being comfrotable with your setup is having nice ergonomics that meet your needs. Most people use the default setup provided to them and never touch settings however I for myself I always had the urge that things were not comfortable using the default setup and I've been more picky with how things are configured. This has led me down the path of trying to optimize my setup for my personal needs. The progression of things that I've tried have gone from using the mac keyboard with default keybin…  ( 8 min )

Hey Devs! 👋 chat with your favorite books like you're texting a friend? 📖💬 BookChatBot, an AI-powered chatbot that can answer questions about a book, using: 🧠 LangChain (for LLM logic) 🌲 Pinecone (for vector search) 🧾 PDF loading and splitting ⚡ Google Gemini (for answering questions) 🧪 Flask (as the web framework) You can find the full code on GitHub: GitHub Repo We're building a chatbot web app that can read PDFs (like a book 📘), store them in Pinecone’s vector database, and allow users to ask questions about the content! Google's Gemini model. 💸 Note: Pinecone’s free tier only allows one index. So for now, you can't dynamically upload new books — but once set up, it's super efficient for Q&A! bookchatbot-/ ├── app.py # Flask app and RAG chain ├── helper.py …  ( 5 min )

The Christmas holiday period always brings some opportunity to sneak in some time for hobby projects. Either its because the rest of the family is still sleeping in during the morning or to just sit with the laptop next to the kids while they look a Christmas movie. During recent years end period there was a lot of excitement about the deepseek model, released open source, so i decided to give it a try to run local. First setting up the environment. From my ethical hacker lab I was already used of using oracle box (with Kali), so I continued in that space. https://dev.to/pavanbelagatti/run-deepseek-r1-locally-for-free-in-just-3-minutes-1e82 Setting up went fast, although there where as usual some extra libraries to upgrade. Also made the rookie mistake to give the VM insufficient disc space :-D First impression: slooooooooooooooooooooooooooooooooooow but also what a fun to use! Planned three homelabs as follow-up: Using python scripts to call the local LLM (update May: done, see next blog post) Play around with different LLMs to measure performance Install stable diffusion to create pictures for this blogpost (if hardware allows it...)  ( 3 min )

This is a simplified guide to an AI model called Qwen3-32b maintained by Prunaai. If you like these kinds of analysis, you should join AImodels.fyi or follow us on Twitter. qwen3-32b represents an optimized implementation of the Qwen3 language model, delivering 2x faster performance through Pruna AI optimization techniques. This model builds on earlier versions like qwen1.5-72b, created by prunaai. The model features dual operating modes - a thinking mode for complex reasoning and a non-thinking mode for general conversation. The model processes text prompts and generates human-like responses with optional intermediate reasoning steps. It supports over 100 languages and provides flexibility in response generation through configurable parameters. Prompt - Text input that can include instructions, questions, or conversation Enable Thinking - Boolean toggle for reasoning mode Max New Tokens - Integer limiting response length (default 512) Text Response - Generated content that can include reasoning steps and final answers The model excels at mathematics, code g... Click here to read the full guide to Qwen3-32b  ( 3 min )

dhvagna-dom What makes dhvagna-dom stand out? Unlike other DOM-ready utilities, this package combines TypeScript support, minimal size (0.7KB), intelligent state detection, and cross-browser compatibility while offering features like optional timeouts and proper event cleanup. It's the smartest choice for modern web development when you need reliable DOM-ready detection without the bloat. A lightweight utility (less than 1KB) to ensure your JavaScript code runs after the DOM is fully loaded, solving the common issue where developers face issues accessing DOM elements due to scripts running before the DOM is fully loaded. Why dhvagna-dom is the top priority choice Advantage over similar solutions Smallest possible footprint 5-10x smaller than alternatives like jQuery (0.7KB vs 30K…  ( 5 min )

You’re not imagining it. The 2 AM GitHub commits, the endless JIRA tickets, the pressure to "just learn AI already" 2025’s developer culture is breaking us. Behind the flashy keynotes about "innovation" and "disruption," a silent crisis is raging: burnout is now the default, not the exception. This isn’t another "work-life balance" lecture. This is about why 40% of senior devs are planning exit strategies by 2026 (2025 Stack Overflow Mental Health Survey), and what we’re really losing when they walk away. 1. The Myth of "Just Keep Learning" The 2025 Reality: AI tools like ChatGPT-5 and GitHub Copilot X can now write 80% of boilerplate code, but instead of freeing us, they’ve raised the bar: "Why aren’t you shipping faster?" Framework Fatigue: React 22, Svelte 6, Vue 4… Learning a n…  ( 4 min )

If you've worked with React or JavaScript modules, you might have noticed that sometimes you write imports with curly braces ({}) and sometimes without them. Ever wondered why? Let’s break it down. A default export allows a module to export a single value. It’s useful when your file exports just one main thing — like a component. // components/Footer.jsx export default function Footer() { return ...; } import Footer from './components/Footer'; 🚫 No curly braces needed for default exports. A named export allows you to export multiple values from a file. You must import them using curly braces. // components/Contact.tsx export function Contact() { ... } export function AnotherHelper() { ... } import { Contact } from './components/Contact'; ✅ Curly braces required for named exports. You can combine both in one file: export default function App() { ... } export function Helper() { ... } Then import like: import App, { Helper } from './App'; Hope this clears up the mystery behind those curly braces! Do you have questions or tips? Drop them in the comments. Follow for more @mahmud-r-farhan https://devplus.fun  ( 3 min )

When migrating a Yii application to a new shared host, you may encounter the warning: session_regenerate_id(): Cannot regenerate session id - headers already sent. This issue typically arises when output is sent to the browser before PHP attempts to modify the session. Let's dive into the causes and solutions for this common problem, ensuring your Yii application runs smoothly on the new server. Understanding the Warning The warning signifies that some output was sent to the browser before your PHP script tried to refresh the session. This can often happen if there are unexpected characters or whitespace before the opening tag in your PHP files. Other causes can include echo or print statements executed before session manipulation. The use of the function …  ( 5 min )

This is a Plain English Papers summary of a research paper called AI Deception: Frontier Models Show Stealth & Awareness in Tests. If you like these kinds of analysis, you should join AImodels.fyi or follow us on Twitter. Research evaluates frontier AI models for deceptive capabilities Focuses on models' ability to engage in stealth and situational awareness Examines potential risks of AI systems developing scheming behaviors Analyzes various threat models including code sabotage and deception Proposes safety evaluation frameworks and countermeasures Current AI models have grown very sophisticated, raising concerns about their ability to deceive or manipulate. The research looks at how advanced AI systems might develop awareness of when they're being tested and adjust their behavior accordingly - like a student who acts dif... Click here to read the full summary of this paper  ( 3 min )

Leapcell: The Best of Serverless Web Hosting MVC stands for Model View Controller, which is an abbreviation for model-view-controller. It is a widely applied software design paradigm. Its core idea is to organize the code by separating the business logic, data, and interface display, and centralize the business logic in one component. In this way, when improving and customizing the interface and user interaction, there is no need to rewrite the business logic. MVC has uniquely developed to map the traditional input, processing, and output functions into a logical graphical user interface structure. MVC is a pattern for creating web applications using the MVC (Model View Controller model-view-controller) design. The specific introduction is as follows: +-------------------+ | Model …  ( 10 min )

This is a Plain English Papers summary of a research paper called Distributed Systems Theory: Yale Course Notes on Consensus, Broadcast & More. If you like these kinds of analysis, you should join AImodels.fyi or follow us on Twitter. Comprehensive course notes on distributed systems theory from Yale CPSC 465/565 Covers fundamental concepts like broadcast protocols, leader election, consensus algorithms Explores advanced topics including Byzantine agreement, failure detection, shared memory Addresses self-stabilization, graph algorithms, population protocols, mobile robots Focuses on theoretical foundations and mathematical models These course notes break down how computers work together in groups to solve problems. Think of it like a team of people trying to coordinate - they need ways to communicate, make decisions together, and handle when team members fail or disagree. The material starts with basic... Click here to read the full summary of this paper  ( 3 min )

Ever feel like you're juggling too many tasks, and letting too many things fall through the cracks? Trying to remember a bunch of things you need to get done, while others are noted in various pages of your notebook, and even more are scattered throughout various emails, texts, and Slack messages? At home you leave out tools and supplies to remind you of those projects you need to get back to. In the front seat of your car you leave boxes and receipts so you don't forget to do whatever it is you need to do with them. Stuff in your wallets, purses, backpacks, notebooks, computers, phones, desks, counters, tables, beds...the list just goes on and on and on. This week, I'd like to help you overcome this craziness with something exceptionally simple, but also immensely powerful. The humble inb…  ( 7 min )

This is a Plain English Papers summary of a research paper called Llama-Nemotron: 2.5x Faster AI Reasoning Without Losing Accuracy. If you like these kinds of analysis, you should join AImodels.fyi or follow us on Twitter. New efficient inference model called Llama-Nemotron combining vertical compression and FFN fusion Achieves 2.5x speedup while maintaining accuracy Focuses on real-world deployment constraints Novel architecture optimizations for resource efficiency Demonstrated success on reasoning and mathematical tasks Llama-Nemotron represents a significant step forward in making AI models faster and more efficient. Think of it like streamlining a car engine - you want the same power but with better fuel economy. The researchers found a way to compress the model vertically (like stacking flo... Click here to read the full summary of this paper  ( 3 min )

A post by Ben Halpern  ( 2 min )

Meme Monday! Today's cover image comes from last week's thread. DEV is an inclusive space! Humor in poor taste will be downvoted by mods. Reminder: Every day is Meme Monday on DUMB DEV ✨  ( 3 min )

What is HTML All The Things? HTML All The Things is a web development podcast and discord community which was started by Matt and Mike, developers based in Ontario, Canada. The podcast speaks to web development topics as well as running a small business, self-employment and time management. You can join them for both their successes and their struggles as they try to manage expanding their Web Development business without stretching themselves too thin. In this episode, Matt sits down with Tom Barrasso from Cloud Phone to explore why flip phones are still relevant in 2025. They discuss the rise of digital detox, who’s using feature phones today, and how developers can still build apps for low-spec devices. From KaiOS and Cloud Phone to nostalgia and screen-time reduction—this is a deep …  ( 5 min )

Abstract License-Token introduces an innovative licensing system that leverages blockchain technology, smart contracts, and digital tokenization to revolutionize open source licensing. This blog post explores the background, core concepts, practical use cases, challenges, and future opportunities of License-Token. We also examine how traditional open source licenses such as GPL, MIT, and Apache compare to License-Token’s cutting-edge approach, and how the platform can empower developers, streamline compliance, and unlock monetization opportunities. Open source software has long been a catalyst for innovation by enabling developers around the world to collaborate, share, and iterate on code. However, existing licensing models struggle with legal complexity, interoperability, and monetizat…  ( 8 min )

Just the other day I was testing a permissions function when I came across something very interesting about Array.prototype.every. So, let me give you a little back story. The function I was testing is a a very simple one that check whether a user has permissions required to access given module or action. This function happened to use the JS array method called every How every works is that it loops through the array and checks whether all items satisfy a provided condition. If it encounters any item that doesn’t it break the loop and returns false, however if all items satisfy the conditions then true is returned. However, there is a peculiar behavior to this method in that if an empty array is used then true is still returned. This is where the concept of vacuous truth comes in // typesc…  ( 4 min )

In my previous post, I discussed a silent failure scenario involving a JavaScript-triggered Action + Plugin setup. This post explores a more structured approach using JavaScript + Action + Plugin, and how to scale it with Power Automate. This approach separates responsibilities cleanly between: Client: JavaScript Logic: Plugins Integrations: Power Automate We start with a JavaScript function that triggers a bound action, keeping the UI lightweight and offloading processing to the server. Xrm.WebApi.online.execute({ entityName: "quote", entityId: quoteId, actionName: "new_CustomWinQuoteAction" }); The Custom Action serves as a reusable interface layer that: Accepts input parameters Supports versioning and audit Can be triggered from JavaScript, Power Automate, or other Plugins A plug…  ( 4 min )

Communication is critical for any business to be successful, as it generates leads and revenues. As a business grows, opportunities for expansion arise. With a USA virtual phone number, you can expand your business in the US without having to establish a physical office. It provides you with a local presence, establishes trust with customers, and keeps business communication structured. And whether you are a growing business or a start-up, having the right provider is what counts. Here we’ll guide you through what virtual phone numbers are, what they do, and the best platforms to use in 2025. Getting a USA virtual phone number is easier than you might think. You don’t need to be physically located in the US to call or text with a number that is US-based. Step 1: Select a trusted virtu…  ( 8 min )

I'm excited to announce a strategic career transition, building on my Ruby back-end programming foundation from Launch School to specialize in DevOps/SRE with a focus on Financial Services Platform Engineering. This carefully planned path leverages my existing terminal-centric workflow, Ruby expertise, and previous IT infrastructure experience to create a high-value specialization where technology meets financial services compliance and security. My 24-month "FinOps Engineering Mastery" roadmap includes: Mastering infrastructure as code, containerization, and cloud architecture Obtaining key certifications including AWS Solutions Architect, Kubernetes Administrator, and more Building a portfolio of platform engineering projects specifically designed for financial services environments Developing expertise in compliance automation and security for regulated industries I'll be documenting this self-directed learning journey through technical articles and open-source contributions. If you work in financial services technology, cloud infrastructure, or platform engineering, I'd welcome the opportunity to connect! DevOps #PlatformEngineering #FinTech #CloudComputing #CareerDevelopment  ( 3 min )

Debugging is a crucial phase in software development, allowing developers to track down and fix bugs in their code. One feature that significantly enhances the debugging experience in Visual Studio (VS) is the ability to view objects' values inline while stepping through your C# code. If you've noticed that your colleagues can see values inline when debugging but you can't, don't worry! This article will guide you through the steps necessary to enable this feature and make your debugging sessions more efficient. Understanding Inline Values in Visual Studio Inline values provide a convenient way to monitor variable states without having to hover over them or check the Watch window. This feature is particularly useful for tracking down issues quickly as it allows you to see how variable valu…  ( 5 min )

En el post anterior vimos cómo convertir un bucle for con incremento distinto de 1, y un bucle for infinito a un estilo completamente funcional utilizando el método iterate() de IntStream. En este post veremos como convertir un bucle foreach de un estilo imperativo a un estilo funcional, además de cómo filtrar elementos de acuerdo a una condición. En Java 5 se introdujo la sintaxis de foreach, la cual se utiliza para iterar sobre colecciones de elementos. Por ejemplo, para iterar una colección de cadenas que representan nombres, podemos escribir for(String name: names){}. En segundo plano, él foreach se convierte, a nivel de código de bytes, para utilizar un Iterator, mientras que el iterator nos dice que hay un elemento, busca el siguiente elemento para procesarlo. En otras palabras, él f…  ( 5 min )

Logging is a fundamental part of software development that provides insights into an application's behavior, making debugging and monitoring easier. A well-structured logging system helps developers understand how an application is running, identify issues, and optimize performance. Why Are Logs Important? Logs serve several critical purposes, including: Debugging & Troubleshooting: Logs help track down issues, especially in production environments where debugging directly is not feasible. Monitoring & Observability: Logs allow teams to monitor application health and detect anomalies. Security Auditing: Logs keep records of critical events, such as user authentication attempts and database queries, which are essential for security audits. Performance Optimization: By analyzing logs, deve…  ( 5 min )

More accurately, I’m over everyone treating it like the only answer. I'm a devout supporter of Web Components and have been preaching the gospel of W3C standards for decades. That guy you always hear muttering "Why use a library when the browser gives you everything you need?" I have lived through five versions of HTML (2,3,4,XHTML,5) and watched as libraries like jQuery and frameworks like Angular have come and gone from the spotlight. And I'm here now to tell you that you never NEEDED any of them and this has never been more true than it is today. Custom Elements, Shadow DOM, HTML Templates. These tools provide everything we need to build robust, modern apps without relying on heavy abstractions. But still, in 2025, the web development world clings tightly to libraries like React. I…  ( 4 min )

database server is a server which uses a database application that provides database services to other computer programs or to computers, as defined by the client–server model.[citation needed][1][2] Database management systems (DBMSs) frequently provide database-server functionality, and some database management systems (such as MySQL) rely exclusively on the client–server model for database access (while others, like SQLite, are meant for use as an embedded database). Users access a database server either through a "front end" running on the user's computer – which displays requested data – or through the "back end", which runs on the server and handles tasks such as data analysis and storage. In a master–slave model, database master servers are central and primary locations of data while database slave servers are synchronized backups of the master acting as proxies. Most database applications respond to a query language. Each database understands its query language and converts each submitted query to server-readable form and executes it to retrieve results. Examples of proprietary database applications include Oracle, IBM Db2, Informix, and Microsoft SQL Server. Examples of free software database applications include PostgreSQL; and under the GNU General Public Licence include Ingres and MySQL. Every server uses its own query logic and structure. The SQL (Structured Query Language) query language is more or less the same on all relational database applications. For clarification, a database server is simply a server that maintains services related to clients via database applications. DB-Engines lists over 300 DBMSs in its ranking.  ( 3 min )

In modern cloud-native environments, compliance, governance, and standardization are critical to ensuring security, operational efficiency, and regulatory adherence. As organizations adopt containerized infrastructure, enforcing consistent policies across platforms like Amazon EKS (Kubernetes-based) and ECS (serverless containers) becomes increasingly complex. At first glance, AWS Config and Kubernetes-native policy engines like OPA Gatekeeper and Kyverno may appear to serve the same function — enforcing rules and ensuring compliance in containerized workloads. But in reality, they operate at different layers, solve distinct problems, and target different scopes of governance. AWS Config is designed for cloud-wide compliance across AWS resources, whereas Kubernetes-native engines are focus…  ( 7 min )

malai is a new open-source tool from the team at FifthTry. It helps you share your local HTTP server with the world — instantly and securely. Built on top of the powerful iroh P2P stack, malai lets you expose your local development environment without deploying it to a public server or configuring firewalls and DNS. Whether you're testing webhooks, giving someone a quick demo, or just want to show off your side project, malai makes it dead simple. Install malai today using: curl -fsSL https://malai.sh/install.sh | sh And run: $ malai http 3000 --public Malai: Sharing http://127.0.0.1:3000 at https://pubqaksutn9im0ncln2bki3i8diekh3sr4vp94o2cg1agjrb8dhg.kulfi.site To avoid the public proxy, run your own with: malai http-bridge Or use: malai browse kulfi://pubqaksutn9im0ncln2bki3i8diekh3sr4…  ( 5 min )

Abstract: License-Token introduces a revolutionary digital asset model that fuses open-source licensing with blockchain-powered finance. This innovative paradigm tackles the longstanding funding and governance challenges within the open-source software (OSS) ecosystem. In this post, we explore the background and context of open source, delve into the core concepts and features of License-Token, review practical applications, and discuss the challenges and future outlook. Whether you are a developer, contributor, or tech enthusiast, this article offers a comprehensive look at how License-Token is set to reshape OSS sustainability while bridging the gap between financial practicality and open collaboration. The world of open-source software has long thrived on collaboration and community in…  ( 8 min )

A data mart is a structure/access pattern specific to data warehouse environments. The data mart is a subset of the data warehouse that focuses on a specific business line, department, subject area, or team.[1] Whereas data warehouses have an enterprise-wide depth, the information in data marts pertains to a single department. In some deployments, each department or business unit is considered the owner of its data mart, including all the hardware, software, and data.[2] This enables each department to isolate the use, manipulation, and development of their data. In other deployments where conformed dimensions are used, this business unit ownership will not hold true for shared dimensions like customer, product, etc. Warehouses and data marts are built because the information in the datab…  ( 4 min )

I’m excited to share my journey of fine-tuning TinyLlama/TinyLlama-1.1B-intermediate-step-1431k-3T, a compact 1.1 billion parameter language model, using Low-Rank Adaptation (LoRA) to classify emotions in tweets from the dair-ai/emotion dataset. LoRA makes fine-tuning efficient by tweaking only a small subset of parameters, perfect for those of us working with limited hardware. You can dive into the full code and resources at my GitHub repo: mrzaizai2k/finetune-tinyllama-lora. Why This Matters Getting Started Exploring the Data Prepping the Dataset Training with LoRA How It Performs What’s Next TinyLlama is a lean, mean machine from the Llama family, designed for efficiency without sacrificing power. Fine-tuning it for emotion classification—identifying sadness, joy, love, anger, fear, or …  ( 6 min )

Cet article traite de la création d'un composant de dialogue (Dialog) avec Riot, en utilisant le CSS Material Design BeerCSS, et de la gestion des événements de clic. Avant de commencer, assurez-vous d'avoir une application de base RiotJS, ou consultez mes articles précédents de la série. Je suppose que vous avez une compréhension de base de Riot ; cependant, n'hésitez pas à consulter la documentation si nécessaire : https://riot.js.org/documentation/ Le dialogue informe les utilisateurs sur une tâche spécifique et peut contenir des informations critiques, nécessiter des décisions ou impliquer plusieurs tâches. Dans un dialogue modal, l'utilisateur est interrompu et interagit avec le dialogue avant de pouvoir continuer à interagir avec le reste de l'application, par exemple en choisissant …  ( 6 min )

In recent years, the notion that “big data is dying” seems to be gaining traction. Some say the big data craze has faded, while others lament the shrinking job opportunities, the increasing complexity of platforms, and the growing intricacy of business demands. But does this really mean big data is dying? I don’t think so. In my view, what’s truly dying is not big data itself, but rather the outdated “dragon-slaying techniques” that no longer have any “dragons” to slay. The “dragon” has evolved, while our weapons remain stuck in the past. Technology needs to evolve, architectures need to be restructured, and capabilities need to be upgraded. To understand the current state and trends of big data, we must first examine how it has evolved step by step. The development of big data can be divi…  ( 8 min )

By Harshit Singh, your coder bhai at wittedtech Oye, backend ke sher! 🦁 2025 mein jab log AI, Web3, aur naya naya tech ke piche bhaag rahe hain, ek language chupke se backend ka sartaaj bana hua hai—Java. Haan, wahi Java jisko tumne college mein “public static void main” se shuru kiya aur socha, “Yeh toh old school hai.” Bhai, yeh old school nahi, gold school hai! Netflix, Amazon, aur woh banking apps jo crores ke transactions sambhalte hain—sab Java ke fan hain. Kyun? Kyunki Java stability ka baap hai, scalability ka dost, aur ecosystem ka multiverse. Chalo, wittedtech style mein iska raaz kholte hain—thodi masti, thodi kahani, aur dher saara gyaan. Ready ho? Let’s code this up! Java: The Backend Ka Baap Stability Jo Dil Jeet Leti Hai Scalability That Says “Bring It On!” Ecosystem: E…  ( 6 min )

When you're building a dynamic frontend—like a game store, product listing, or job board—your UI needs to handle a lot of state: What page are we on? What filters are selected? Are we sorting by newest, most relevant, or trending? What platform, genre, or tags are selected? Managing all of that with separate useState hooks or deeply nested props can quickly become a nightmare. Enter the Query Object Pattern. A Query Object is a single JavaScript object that encapsulates all your query parameters—filter values, sort order, pagination, etc. const [query, setQuery] = useState({ genreId: null, platformId: null, sortOrder: 'relevance', searchText: '', page: 1, }); Instead of spreading your state across multiple hooks: const [genreId, setGenreId] = useState(null); const [platformId, s…  ( 4 min )

When learning programming or data structures, it’s easy to feel like we're making significant progress just by spending a lot of time coding or watching tutorials. We might think that by solving numerous problems or watching endless videos, we are improving our skills. However, after a certain point, we might find ourselves struggling to solve problems we’ve encountered before or feel stuck when faced with new challenges. This is the false sense of progress that many learners experience in their programming journey. At the beginning of learning programming, it’s common to feel like we are advancing rapidly. Solving coding problems and watching tutorials can give us the impression that we're progressing. But when it comes to solving more complex problems or applying what we've learned to re…  ( 5 min )

Limitations of Virtual Machines and Servers? 1. Startup & Shutdown Times: VMs generally take longer to start up and shut down compared to containers, which can impact the speed of deployment and scaling. This delay can be a bottleneck in environments requiring rapid provisioning and de-provisioning of resources. 2. Dynamic Resource Allocation is Complex: VMs rely on hypervisors(such as VMware ESXi, Microsoft Hyper-V) to manage and allocate resources like CPU, memory and storage. This adds complexity because the hypervisor needs to handle various resource demands and ensure fare distribution. (Earlier we would need to Shutdown the VM for changing the allocated resources but now this can be done on a running instance as well but it still needs input/human intervention and its complex) Aut…  ( 4 min )

Tracking Institutional Money: How FII DII Data Tool Transforms Investment Decisions Enter the FII DII Data Tool, a comprehensive dashboard that transforms complex institutional investment data into actionable insights. This innovative platform has been quietly revolutionizing how investors monitor market movements and make decisions. Let's explore why this tool matters and how it's changing the investment landscape. The Power Players: Understanding FIIs and DIIs Foreign Institutional Investors (FIIs) include international entities like pension funds, mutual funds, and investment banks that invest in the Indian market. Their massive capital movements can create significant market momentum. When FIIs pour money into a market, it typically rallies; when they withdraw, markets often tumble. Do…  ( 8 min )

message queues or event streaming platforms play a critical role in enabling this communication. But here's the key question: How reliably is a message delivered from sender to receiver? Let’s break down the three core delivery semantics you’ll encounter in real-world systems 👇 At-Most Once 🔹 Messages are delivered zero or one time No retries, so if something fails — the message is lost no guarantee of delivery 💡 Use case: Monitoring metrics, logs, or telemetry where occasional loss is acceptable. At-Least Once 🔹 Messages are never lost may be delivered multiple times deduplicate on the consumer side 💡 Use case: Order processing, notifications, analytics — where duplicates can be filtered or ignored. Exactly Once 🔹 Each message is delivered only once, no duplicates, no loss very hard to implement complexity, latency, and often performance trade-offs 💡 Use case: Financial transactions, trading systems, accounting — where idempotency is not supported and every operation must be precise. Choosing the right delivery guarantee isn’t just about tech — it’s about your use case and business priorities. a single duplicate message could cost thousands. 📌 Message Queue vs Event Streaming Platform? 🔹 Message Queues (like RabbitMQ, SQS): Focus on reliability and order for point-to-point communication. 🔹 Event Streaming Platforms (like Kafka, Pulsar): Optimized for broadcasting, storing, and replaying high-throughput event logs. Ideal for event-driven systems and real-time analytics. What’s your go-to strategy for delivery semantics in distributed systems? Let’s discuss in the comments 💬  ( 4 min )

Let’s be honest. You've spent hours wrangling with bloated WordPress themes or waiting on backend fixes just to launch a simple page. Sound familiar? It’s not you. It’s the traditional CMS model. Let’s talk about why headless CMS is the quiet hero that’s helping frontend developers like you build faster and smarter. What Is a Headless CMS (And Why Should You Care)? In dev-speak: it’s a CMS without a front-end layer. In real talk: it gives you content via API and lets you build the frontend however you want. So instead of battling clunky plugins and rigid templates, you’re free to code with your favorite stack — React, Next.js, Vue, whatever. 1. Speed Boost with Modern Dev Tools Headless CMS platforms are made to play well with modern JavaScript. You can: Pull content via REST or GraphQL Use static site generators like Next.js for blazing performance Integrate easily with CI/CD workflows Translation? You ship faster — and with less backend drama. 2. Frontend Freedom = Faster Iteration No more begging backend devs to make a template change. With headless, you’re in full control of the UI/UX. Want to test a new layout or animation? Go for it. Your content comes clean and structured — so you can design and iterate freely. ## 3. Better Dev-Content Team Workflow They update copy. You build features. No blockers. 4. Scale Without Slowing Down Need to serve content across web, mobile, and IoT? No problem. You can scale globally, without rebuilding everything from scratch. Final Thought: Headless Is Built for How Developers Actually Work If you’re tired of waiting on legacy systems and want a faster, cleaner development experience, it might be time to switch. Want to See It in Action? Try a free headless CMS demo with Caisy. It’s built with developers in mind — lightning-fast, API-driven, and perfect for JS frameworks.  ( 4 min )

Introduction Let me be honest SQL has been giving me a hard time for a while. So, I was getting stuck even with the basics. So I decided to stop running away and build a real project from scratch: a student enrollment system. I wanted something simple but useful, where I could understand how real systems are built with SQL,,including relationships, foreign keys, and triggers. This is how it went down. This project is all about managing a small school system. It handles: Storing student info (name, email, date of birth) Keeping track of instructors Linking courses to instructors Enrolling students to courses Logging every enrollment using a trigger Tables I Created Table Description Students Stores student details like name and date of birth Instructors Stores ins…  ( 4 min )

Pre-study Next.js - Image Component Importing images used the 'import' keyword for the image 'src' breaks jest test #26749 Jest - Manual Mocks React Testing Library MDN JavaScript - Rest parameters When testing a React component with Jest and the React Testing Library, this error occurs if the component renders a Next.js Image component and the Next.js Image component is not mocked. Error: Uncaught [Error: Image with src "test-file-stub" is missing required "width" property.] To allow passing dynamic properties into the mock image component so that it can handle different test cases, modify the mock image to accept an indefinite number of arguments as an array. In jest/setup.js, add the following: jest.mock('next/image', () => ({ __esModule: true, default: (props) => { return ; }, })); For example, const renderResult = render(); container = renderResult.container; console.debug(container.innerHTML); This will output the following in the terminal: Mocked Nav  ( 3 min )

Entities 1) User One user can have many groups One group can have many users 1) Generate user and post go run -mod=mod entgo.io/ent/cmd/ent new User go run -mod=mod entgo.io/ent/cmd/ent new Group 2) Connect user with group func (User) Edges() []ent.Edge { return []ent.Edge{ edge.To("groups", Group.Type), } } 3) Connect group with user func (Group) Edges() []ent.Edge { return []ent.Edge{ edge.From("users", User.Type).Ref("groups"), } } 4) Try to create user and groups func CreateUser(client *ent.Client, ctx context.Context) { // Create groups g1, _ := client.Group.Create().SetName("Group 1").Save(ctx) g2, _ := client.Group.Create().SetName("Group 2").Save(ctx) // Create user u, _ := client.User.Create().SetName("PP").AddGroups(g1, g2).Save(ctx) } 5) Get user with groups func CreateUser(client *ent.Client, ctx context.Context) { ... userWithGroups, _ := client.User.Query().WithGroups().Where(user.NameEQ("PP")).First(ctx) log.Println("user with groups", userWithGroups.Edges.Groups) }  ( 3 min )

Introduction Creating PowerPoint presentations programmatically can streamline many tasks, but running into errors that impact your ability to open the formatted file can be frustrating. If you've been trying to create a .ppt file using Apache POI version 4.1.2 and encountered the error "PowerPoint found a problem with content in file.ppt", you're not alone. This issue, while not present during your work with previous versions like poi-3.17, indicates that there might be changes or compatibility issues in the newer version that we must address. Why Does the Error Occur? The error you’re experiencing typically arises due to changes in library behavior, certain configurations, or the way the Apache POI library handles PowerPoint file structures between versions. Potential issues could includ…  ( 5 min )

As AI agents move from prototypes to production, one of the most important — and most overlooked — aspects of working with them is how to test and evaluate their different behaviors. Developers are constantly tweaking prompts, adjusting tools, or changing logic. QA engineers are tasked with verifying that responses are accurate, relevant, and aligned with product expectations. Yet, most teams lack a structured way to experiment, compare, and improve AI agents across different versions. This guide outlines the core challenges and introduces a solution based on isolating agent versions, logging structured evaluations, and making experimentation reproducible and measurable. AI agents'behavior changes based on: Prompt instructions Tool availability Model versions System context or user inputs …  ( 7 min )

Here are Top 15 New Trending Tech Jobs in Nigeria. Check Out and Apply Now. IT Support Lead at BUA Cement Plc - Nigeria Apply Here Social Media Manager / Graphic Designer Job at LD&D Consulting - Nigeria Apply Here Remote AI Engineer (LLM + LangChain + RAG) at FlexiSAF Edusoft Limited Apply Here Digital Marketer at Media Trust Group - Nigeria Apply Here Deputy Director, ICT at Caleb University Apply Here CloudOps Security Engineer at Tek Experts - Nigeria Apply Here WordPress Web Developer at Haba Naija (Remote) Apply Here Video Editor & Animator at Spark Motion - Nigeria Apply Here Network Engineer at Arravo Technology Limited Apply Here Football Content Writer - Match Commentary / Trends Focus at 9JaPicks - Nigeria Apply Here Photographer / Videographer at Bluradish - Nigeria Apply Here Information Technologist at Umera Farms Nigeria Limited - Nigeria Apply Here Editorial Assistant at Adonis & Abbey Publishers Limited Apply Here Fiber Optics Engineer at Cobranet Limited - Nigeria Apply Here Tech Associate at Pulse Nigeria Apply Here More Job Updates Here SHARE WITH YOUR FRIENDS🥳🥳  ( 3 min )

18,000 organizations paid the price for poor access control. Don’t let yours be the next headline. The NTT Communications breach showed us what happens when user permissions and privileges are mismanaged. Attackers exploited weak access control and exposed sensitive data from over 18,000 organizations. Here’s how it should have been done: secure onboarding, least privilege, and strict access control using real-world Linux best practices. Scenario: You’re the SysAdmin 1. Create a New Group 2. Create User Accounts 3. Secure Home Directories 4. Assign Sudo Access to Team Lead a. Password Complexity b. Password Expiry c. Protect Sensitive Files 6. Shared Directory for Collaboration 7. Basic Monitoring Best Practices Recap Conclusion: Secure by Design Let's Connect on LinkedIn You’ve been ass…  ( 4 min )

From sophisticated financial platforms processing a constant stream of critical transactions to global e-commerce sites navigating a vast ocean of customers, modern enterprise applications have moved beyond simple mechanics. They've become intricate, interconnected ecosystems, like complex digital cities built upon microservices, cloud foundations, and diverse hybrid infrastructure. Navigating this intricate digital terrain without comprehensive insight is akin to sailing uncharted waters without a compass. This is where application observability emerges, not merely as a tool, but as your guiding star, providing the essential bearings to understand your application's behavior. Application observability transcends the limitations of traditional monitoring's surface-level readings. It offers…  ( 6 min )

Building fast, responsive React apps isn’t magic—it’s the result of understanding how React works under the hood and applying best practices. In this post, we’ll explore: Virtual DOM and selective updates What is the Virtual DOM? Diffing Algorithm 🔄 Selective Updates // Conceptual illustration—React does something like: const prevVDOM = renderApp(props); const nextVDOM = renderApp(newProps); const patches = diff(prevVDOM, nextVDOM); applyPatchesToDOM(patches); Keys 🔑 // ❌ Bad: key={index} {items.map((item, index) => ( {item.name} ( {item.name} ))} Rendering 500+ rows at once kills performance. Virtualization renders only the visible portion of a list.Tools …  ( 6 min )

The landscape of frontend development is constantly evolving, especially when it comes to UI components. For years, we've juggled comprehensive libraries like Material UI, Ant Design, or Chakra UI. They offer a wealth of pre-built components, but often come with trade-offs: heavy bundle sizes, complex style overrides, and a feeling of being locked into their specific ecosystem and design opinions. Then came Shadcn/ui, and for many developers like myself, it fundamentally changed the game. Shadcn/ui isn't a component library in the traditional sense. It's better described as a curated collection of beautifully designed, highly reusable UI primitives and components built using Radix UI for behaviour and accessibility, and Tailwind CSS for styling. The magic lies in its approach: you don't i…  ( 8 min )

Time for a long-overdue update on the Fidely Project! Yeah, this post took a while to come out—writing consistently is still a challenge for me. But hey, I'm trying to stay on track and keep this blog alive for the months ahead. In this post, I’ll walk you through what I’ve been building lately. Lots of progress, especially on the frontend, but also a good amount of refactoring under the hood. If this is your first time hearing about Fidely, I recommend checking out the series to understand the context and the problem I'm trying to solve. Right now, I’m mostly focused on the shop owner’s point of view. Here’s what a shop owner can now do: ✅ Register/Login ✅ Create and manage one or more companies ✅ Set up loyalty campaigns (both points collection and stamps) ✅ Create customer cards ✅ …  ( 4 min )

Hello Dev.to community! 👋 As a developer, I often found myself repeating the same Git commands over and over again during my workflow... So I built a small CLI tool called gitNull to make that easier! gitNull? A lightweight GitFlow helper written in Node.js. It automates common git actions like: gitNull start-feature gitNull finish-feature gitNull push – adds, commits and pushes in one command With a retro CLI look and some colorful feedback thanks to chalk and figlet. I love clean workflows, and I always wished Git had something a bit more guided. I didn’t want a full GUI — just a faster terminal flow. This is my first attempt at building a CLI tool, and I'm sharing it to get feedback and ideas from the community. Check it out on GitHub: https://github.com/faithreborn/gitnull Whether you're a CLI junkie, a GitFlow user, or someone who just hates typing long commands — I’d really appreciate if you give it a try and tell me what you think. ❤️ Any feedback, issues or PRs are welcome! Thanks for reading 🙌  ( 3 min )

Microsoft's Visual Studio Code, commonly just called VS Code, is a great piece of software. This is in no small part due to all extensions on the extensive marketplace providing extreme flexibility. It has proven it to be adaptable to most, if not all, software development projects. My editor of choice, neovim, provides no such benefits out of the box, requiring me to configure everything, install language plugins, code completion, myself. Vim and neovim are by far more powerful editors, but lacking the ease-of-use of VSCode, and easy discoverability of new features; I don't recommend beginners to use these. Configuration is done through code, not a nice UI allowing you to browse a marketplace and take popularity into consideration when choosing between different plugins for the same task…  ( 8 min )

The blockchain industry is rapidly evolving — and with it, the demand for skilled developers. Whether you're aiming to build the next Bitcoin or contribute to innovative chains like Whitechain, the right technical foundation is key. Here’s what you need to break into the space: 🛠 Core Technical Skills 1. Programming Languages 2. Smart Contract Development 3. Data Structures & Algorithms 4. Blockchain Architecture & Consensus Mechanisms 5. Cryptography Basics 6. Working with APIs & Web3 Libraries 7. Version Control & CI/CD 💡 One of the best ways to learn is to build on real-world platforms. ✅ Becoming a blockchain developer isn't just about writing code — it's about understanding distributed systems, cryptography, and economic logic. Focus on building a strong technical foundation, stay curious, and keep experimenting on modern platforms.  ( 4 min )

Today we’ll create our first entity, learn how to create events, write a simple query to fetch all events, and of course, test everything to make sure it actually works. Let’s start with the basics. We’ll define our first entity, which is essentially just a SQL table. In it, we need to specify the field names and their types. The first entity will be called event. It will store all the core info about each event: the account of the user who created it, the question text, creation time, expiration time, a flag that shows whether the event is closed, and the result. I want to directly link each event to its creator’s account. For that, we’ll use the type ft4 account, which represents a user in the FT4 system. We import it from the FT4 library in oddly/module.rell like this: module; import l…  ( 8 min )

When using gRPC, one of its biggest advantages over traditional REST is the use of a single long-lived connection over HTTP/2. What does that mean? Unlike REST where every request opens a new connection, gRPC establishes one persistent connection between the client and the server. Through this connection, multiple messages can be exchanged — in both directions — without reopening it each time. Think of it like this: Imagine going to a restaurant. With REST, you’d have to enter and exit the restaurant every time you wanted to order something new. But with gRPC, you sit down once, and continue to place multiple orders and have conversations — all through that single session. Benefits of gRPC’s Long-Lived Connection: ✅ Reduced latency ✅ Real-time communication ✅ Efficient use of resources ✅ Bidirectional streaming supported Use Cases: Perfect for real-time apps like online games, chat systems, IoT devices, and microservice communications — where speed and efficiency matter most.  ( 3 min )

Introduction The concept of sequence modeling is fundamental to understanding RNNs. Many real-world problems involve sequences, where the order of elements carries significant meaning. For example, in language, the meaning of a sentence depends heavily on the order of the words. Similarly, in video analysis, the sequence of frames determines the action being performed. RNNs excel at capturing these dependencies, making them a powerful tool for a wide range of applications. The application of RNNs is prevalent in the field of deep learning. The history of RNNs is marked by continuous evolution. Early RNN architectures faced challenges like the vanishing gradient problem, which hindered their ability to learn long-range dependencies. However, innovations like Long Short-Term Memory (LSTM) …  ( 7 min )

I've been exploring how platforms like Microsoft Azure make cutting-edge technologies available to everyone as a computer enthusiast delving into the field of artificial intelligence. I've learned about the power of no-code machine learning (ML) during my AI learning with SkillTechClub, and the Microsoft Azure AI-900 Certification introduced me to technologies that make this process easier. I'll discuss Azure's no-code machine learning tools and methodologies in this blog, enabling beginners to create clever solutions without knowing any code. Table of Contents What Is No Code Machine Learning No-code machine learning allows individuals to create ML models without writing a single line of code. For non-programmers, it's a game-changer since it allows them to use data for insights, classif…  ( 4 min )

What If You Could Feel Data? This amazing idea is becoming real through something called synesthetic data interfaces. That’s a big name, but it simply means using your senses—like hearing, sight, or touch—to understand data. It’s like turning code or information into a song, a rainbow, or even a feeling in your hand. Why is this important? Because everyone learns differently. Some people understand pictures better, while others learn better by hearing or touching things. Synesthetic data interfaces help people understand hard things in their own way. And guess what? It’s not just for learning. These tools can help doctors, scientists, game designers, and even artists see their work in a brand-new light. In this blog, we will go on a fun journey to learn how this new technology works, how i…  ( 8 min )

Introduction to Hosting Flutter on Firebase Are you curious about how to host your Flutter web applications on Firebase? This guide will walk you through the steps of deploying your Flutter projects to Firebase Hosting while addressing how effectively it works. If you're already familiar with Firebase from hosting HTML, JavaScript, and CSS pages, you'll find it quite straightforward to transition to Flutter. Why Choose Firebase for Flutter Hosting? Firebase Hosting is a powerful, secure hosting solution tailored for web applications. Here are a few reasons why Firebase is an excellent choice for hosting Flutter applications: Global CDN: Firebase Hosting uses a global Content Delivery Network (CDN) to ensure your app loads quickly from anywhere in the world. Reliable and Scalable: It can ea…  ( 5 min )

What is Data Scraping? Data scraping (or web scraping) refers to the process of automatically extracting data from websites or other online sources. The purpose is to gather structured data from unstructured sources, like web pages, and transform it into a more usable format for analysis or other purposes. Web scraping usually involves retrieving information from HTML or web APIs and processing it to fit specific needs. Unlike manual methods, data scraping uses automated techniques to extract data at scale, making it faster and more efficient. The extracted data is often saved in formats like CSV, JSON, or databases for easy analysis and usage. How Does Data Scraping Work? Sending a Request: The scraper sends an HTTP request to the server hosting the website from which data needs to be ext…  ( 6 min )

Hey Devs! I’m diving headfirst into the world of web development – but not just the usual buttons and forms. I’m aiming to craft interactive 3D experiences using JavaScript + Three.js, blending logic with visual magic. I started with console.log("Hello World"), and now I’m obsessed with rendering rotating cubes, glowing lights, and dream-like virtual spaces. My mission? To go from beginner to full-stack 3D dev — building apps that feel like games and flow like dreams. Each week, I’ll post small builds, weird bugs, cool fixes, and what I’m learning. If you love creative code, 3D illusions, or are on your own dev journey — follow along, let’s grow together. Let’s code the future, one pixel at a time. – Jayasurya M  ( 3 min )

If you're stepping into blockchain development, you're spoiled for choice when it comes to programming languages. Whether it's Solidity for smart contracts, JavaScript for web3 apps, or Python for scripting tools — each has its place. But among them all, C++ continues to be one of the most powerful languages for blockchain programming. 💡 So, Why Is C++ So Valuable in Blockchain? 🔧 1. Memory & CPU Control 🧵 2. Advanced Multi-threading 📦 3. Object-Oriented with Compile-Time Polymorphism 🚚 4. Move Semantics 🛡️ 5. Code Isolation & Namespace Handling 🕰️ 6. Maturity and Tooling ⚖️ C++ is complex and has a steep learning curve. But for developers who put in the time, the performance benefits are massive — especially for low-level blockchain infrastructure like Bitcoin, Litecoin, Monero, and Stellar. 🆚 C++ vs. Other Blockchain-Friendly Languages Language Best For Key Benefit C++ Core blockchain engines Low-level control, speed, security Solidity Ethereum smart contracts Tailored for Ethereum, easier for beginners Python Tools, scripts, APIs Readable, quick prototyping JavaScript Web3 frontends Ubiquitous on the web If you're serious about diving deep into blockchain development, especially at the protocol level, learning C++ is absolutely worth your time. It's not beginner-friendly, but it's battle-tested and used in some of the most successful crypto projects today. Want to start? Try building a simple blockchain in C++ — you’ll learn a ton about how blockchains work under the hood.  ( 4 min )

On May 3, the Solana Foundation disclosed the resolution of a critical zero-day vulnerability that affected confidential token functionality on the Solana blockchain. The issue, first identified on April 16, could have enabled an attacker to mint unauthorized tokens and withdraw them from user accounts. Although the vulnerability was patched without evidence of active exploitation, the method of resolution raised renewed scrutiny over the centralization of communication within Solana’s validator ecosystem. The flaw was located in two key programs used within the Solana ecosystem: - Token-2022: The primary module handling token minting and account logic. - ZK ElGamal Proof: Responsible for verifying zero-knowledge proofs related to account balances. The issue originated from missing algeb…  ( 4 min )

when i insert score.wins or something it just pop out that undefined,confused me a lot,any help will be appreciated,really really dirve me crazy. RPS game let score = JSON.parse(localStorage.getItem("score")); if (!score) { score = { wins: 0, losses: 0, ties: 0, }; } console.log(localStorage.getItem("score")); let computer = ""; let result = ""; function function1() { const random = Math.random(); if (random = 0) { computer = "rock"; } else if (random >= 1 / 3 && random = 2 / 3 && random  ( 3 min )

Custom ValidaCtion Rules in Laravel 12 Laravel provides a robust validation system, but sometimes you may need to define custom validation rules to handle specific use cases. With Laravel 12, the process of creating custom validation rules has been streamlined with improved syntax and features. In this article, we’ll explore how to create and use custom validation rules in Laravel 12. While Laravel’s built-in validation rules cover most scenarios, there are cases where you need more flexibility. For example: Validating a username to ensure it doesn’t contain special characters. Checking if a value exists in an external API. Enforcing complex business logic. Custom validation rules allow you to encapsulate this logic in a reusable and testable way. In Laravel 12, you can create a custom …  ( 4 min )

Disclaimer Este texto foi inicialmente concebido pela IA Generativa em função da transcrição de uma live do Dev Eficiente. Se preferir acompanhar por vídeo, é só dar o play. Introdução Considero que buscar entender os mecanismos que afetam nossa eficiência é muito importante. Um desses mecanismos é a Lei de Parkinson, uma força invisível mas constante que atua sobre nossas atividades diárias. Neste post, vamos explorar o que é essa força, como ela afeta nosso dia a dia e, principalmente, como podemos combatê-la para sermos mais eficientes. A Lei de Parkinson foi originalmente proposta por Northcote Parkinson em 1955. Em seu estudo original, ele observou que em instituições públicas, como a marinha, o número de funcionários aumentava constantemente, mesmo quando o volume d…  ( 6 min )

When working with visualizations like bar charts in ECharts, it's common to face issues where some data points become invisible when zoomed in. Users often want their entire dataset to be visible, irrespective of the current zoom level. In this article, we will explore how to ensure all data points in your ECharts bar chart remain visible, even under various zoom settings. Understanding ECharts and Zooming ECharts is a powerful open-source charting library that enables developers to create interactive charts effortlessly. Bar charts (like the one in your example) are especially useful for comparing different categories of data. However, when zooming in on a chart, some data points can fall outside of the visible area due to the scaling of the axes or the chart dimension limitations. This i…  ( 5 min )

In this post, I want to share with you @puya/fh, a small cli utility we developed at our company Puyasoft in nodejs that we think is helpful in keeping a folder in sync with another folder by copying only changed files. Jump right to Too Long, Didn't Read section. The main usage of @puya/fh is helping in syncing content of a folder based on its differences with another folder, no matter where they are located (same machine or different machines). The tool does not perform the sync job itself when the two folders are located in separate machines. It provides features though that helps in creating a changeset out of the changes. The next step (transferring and extracting the changeset onto target folder) is easy - can be performed manually or by any automation tool or script. Troubles of man…  ( 8 min )

Executive Summary Qwen 3 is a state-of-the-art large language model (LLM) designed for advanced reasoning, code generation, and multi-modal tasks. With dense and Mixture-of-Experts (MoE) architectures, it offers flexibility for deployment across diverse hardware tiers. This report outlines hardware requirements for deploying Qwen 3 variants, including minimum specifications, recommended configurations, scaling strategies, and cost analysis to guide enterprises in selecting optimal infrastructure. Parameter Count: Up to 32B (dense) or MoE variants with scalable activation. Architecture Type: Dense or MoE (varies by variant). Context Length: 128K tokens. Transformer Structure: Multiple layers (exact count unspecified). Attention Mechanism: Multi-Head Attention (MHA) or equivalent. …  ( 5 min )

In today's rapidly evolving retail landscape, artificial intelligence has transcended from a futuristic concept to an essential competitive advantage. As we navigate the middle of 2025, AI-powered personalization has become the cornerstone of successful retail strategies, fundamentally transforming how businesses connect with customers and deliver tailored shopping experiences that drive loyalty and revenue. The Economic Impact of AI in Retail The integration of generative AI (GenAI) in retail is creating unprecedented economic value. According to McKinsey's research, GenAI is poised to unlock between $240 billion to $390 billion in economic value for retailers, equivalent to a margin increase of 1.2 to 1.9 percentage points across the industry. This substantial impact shows why retailers …  ( 7 min )

In 2025, artificial intelligence continues to reshape how software developers work, code, and innovate. From intelligent code generation and bug detection to automated testing and documentation, AI tools are now indispensable in modern development workflows. This guide highlights the top 10 AI tools that are empowering developers to write cleaner, faster, and more secure code. Whether you're a seasoned engineer or a curious beginner, these tools can dramatically boost productivity, reduce errors, and help you stay ahead in the fast-paced world of software development. Top 10 AI Tools for Developers (2025)  ( 3 min )

Trust matters when browsing websites, but how can you be sure you're on the real deal? The answer lies in a Certificate Chain of Trust that checks website identities with SSL/TLS. This chain of digital certificates connects users to websites through verification steps. For more detailed information you can refer article certificate chain of trust At the top of the chain is the Root Certificate. This is issued by a Root Certificate Authority (CA). These root certificates are pre-installed and trusted by operating systems and browsers. Since they are self-signed, they serve as the anchor of trust for the entire chain. Next in line is the Intermediate Certificate, which acts as a bridge between the root and the final certificate. The root certificate signs the intermediate, and the intermedia…  ( 4 min )

Building a website can feel like setting sail without a compass-especially if you're new to design or development. Choosing the right platform at the beginning not only saves time and money but also affects your site’s growth and performance in the long run. One of the most common comparisons you’ll come across is WordPress vs Squarespace, both well-known yet drastically different tools. This detailed listicle is here to shed light on the core differences between WordPress and Squarespace. Whether you're a small business owner, blogger, or creative professional, understanding each platform's strengths will help you make a smarter decision. When it comes to user-friendliness, WordPress vs Squarespace shows a stark contrast. Squarespace wins in simplicity. It’s a drag-and-drop website build…  ( 6 min )

Оптимизация сайта под поисковые системы (SEO) — критически важный навык для любого разработчика WordPress. Правильная SEO-настройка помогает сайту занимать высокие позиции в выдаче, привлекать органический трафик и увеличивать конверсию. В этом руководстве мы разберём ключевые принципы SEO-оптимизации для WordPress, которые должен знать каждый начинающий разработчик. SEO (Search Engine Optimization) — это комплекс мер по улучшению видимости сайта в поисковых системах (Google, Яндекс и др.). Для WordPress SEO особенно актуально, так как: WordPress — SEO-дружественная платформа, но требует правильной настройки Более 40% сайтов в интернете работают на WP — конкуренция высока Грамотная оптимизация увеличивает трафик без платной рекламы Хостинг должен обеспечивать быструю загрузку страниц (TTFB…  ( 4 min )

After a frustrating day dealing with a broken pipeline at work, all I wanted was to relax with a good story on Wattpad. 😌 I opened the app on my phone, and something strange happened. The home page loaded fine, but when I tried to open any story, I got stuck on an endless loading screen. At first, I thought it was temporary maintenance. But after a week of the same issue, I knew something else was wrong. I did some digging on Reddit and found a pattern: Only Jio users in India were having this problem 🇮🇳 The Wattpad home screen would load, but stories wouldn't People using other networks like Airtel had no issues I tested this by connecting to my Airtel hotspot instead of my Jio data, and suddenly Wattpad worked perfectly! That confirmed the issue was specific to Jio's network. When you…  ( 4 min )

If you’ve ever found yourself endlessly clicking through image selections, deciphering warped text, or identifying traffic lights just to access a website, you’re not alone. CAPTCHA fatigue is real-and it’s becoming a growing frustration for users across the internet. The good news? You don’t have to suffer through it. CAPTCHA solver browser extensions are here to simplify your browsing and save your valuable time. Below, we’ll explain what CAPTCHA fatigue is, why it happens, and highlight top browser extensions that can automatically solve CAPTCHAs for you-so you can get back to what matters. What is CAPTCHA Fatigue? A CAPTCHA is a small online test designed to check if you’re a real person or a bot, protecting websites from automated abuse. CAPTCHA fatigue occurs when these increasi…  ( 5 min )

Introduction When working with Angular applications, encountering errors can often perplex even the most seasoned developers. One common error is the TypeError: Cannot read properties of null (reading 'offsetHeight'). This blog post will address what causes this error and how you can resolve it seamlessly. Understanding the Error The error in question occurs when you attempt to access a property of an object that is null. In the context of your Angular application, this is often related to scenarios where components or services have not initialized correctly or are not available during the lifecycle of the application. Specifically, in your case, it happens when the MenuModule from PrimeNG tries to perform layout calculations on a menu element that hasn't been fully rendered yet. Common Ca…  ( 4 min )

The Web NFC API for Near Field Communication: An In-Depth Exploration Table of Contents Introduction What is NFC? The Evolution of Web NFC Purpose of the Web NFC API Historical Context Overview of NFC Technology Adoption in Web Standards The Role of W3C Technical Context How NFC Works NFC Data Exchange Format (NDEF) Communication Modes: Reader and Writer Web NFC API Specifications Overview of API Design Permissions and User Interaction Model Data Types Supported in Web NFC Code Examples Basic Read Operation Write Operation Advanced Use Cases with Error Handling Handling Specific NDEF Records Edge Cases and Exception Handling Dealing with Unsupported Devices Connection Timeouts Data Format Issues Comparison with Alternative Approaches Bluetooth and Web Bluetooth QR Codes and …  ( 8 min )

AI-powered code editors are revolutionizing how developers write, debug, and optimize code. With the latest advancements in AI-driven coding assistance, developers can now write code faster, detect errors more efficiently, and automate repetitive tasks. Here are the best AI-based code editors in 2025 and their pricing details. AI-powered autocomplete, real-time coding assistance ✅ VS Code: Free 💰 GitHub Copilot: Free (Basics), $4/month (Team), $21/month (businesses) VS Code remains one of the most widely used open-source code editors. When integrated with GitHub Copilot, it provides real-time AI-powered code suggestions, making development faster and smarter. ✔️ AI-powered code autocomplete and inline suggestions If you need a powerful AI coding assistant within a free and customizable ed…  ( 5 min )

The Multi-Tenant Dashboard Dilemma This article explores RBAC and LBAC in Grafana, highlighting real-world best practices, pitfalls to avoid, and actionable insights to scale efficiently. Role-Based Access Control (RBAC) assigns permissions based on defined roles (Admin, Editor, Viewer), controlling user actions like dashboard creation or data source management. RBAC excels in simplicity, making it ideal for straightforward access needs in small, single-tenant setups. Pros: Easy to implement Well-understood by engineers Cons: Quickly becomes unmanageable at scale Limited granularity, causing "role explosion" in complex scenarios LBAC enhances access control by dynamically filtering data based on labels or attributes at query-time, rather than just static user roles. Grafana recently introd…  ( 5 min )

Introduction to Azure Service Bus Azure Service Bus is a fully managed enterprise message broker that facilitates reliable communication between applications and services, both in the cloud and hybrid environments. It supports message queues (point-to-point communication) and publish-subscribe topics (fan-out to multiple consumers), making it ideal for decoupling distributed systems. Brighter provides first-class integration with Azure Service Bus via the Paramore.Brighter.MessagingGateway.AzureServiceBus package, enabling seamless command/event routing in .NET applications. .NET 8 or superior A .NET project with these NuGet packages Paramore.Brighter.MessagingGateway.AzureServiceBus: Enables AWS SNS/SQS integration. Paramore.Brighter.ServiceActivator.Extensions.DependencyInjection: B…  ( 5 min )

Heads‑up: the public demo link is currently offline. We hit deployment snags right before the deadline and couldn’t finish troubleshooting in time. The repo + write‑up still show the full implementation path, side‑car PDP pattern, and Permit.io policy setup.  🔗 GitHub https://github.com/enkaypeter/crm-api  📚 Swagger Docs GET /docs (local)  👤 Test headers x-user-id: 1 (admin) • 2 (sales_rep) • 3 (support) • 4 (customer) • 999 (ai_agent) Traditional vs. Permit.io Criteria Hard‑coded checks Externalized ( Permit.io ) Change a rule Re‑deploy code Update policy in UI/API Auditability Grep code 🤕 Built‑in graph + logs Granularity Role only Role + resource + context Multi‑tenant Custom logic Native support graph TD subgraph Cloud Run Service API[Express API…  ( 5 min )

In the realm of big data, data engineering is emerging as one of the most critical approaches in the high-tech era. It also serves as the groundwork for business intelligence, analytics, and data science. As more businesses rely on data-driven decisions, the role of data engineering is expanding. It further demands technical competence and strong operational and architectural awareness. Whether you're a developer looking for data-centric roles or a budding data engineer, understanding and leveraging best practices is imperative for creating manageable, scalable, and robust data systems. This blog will help you explore the key best practices every developer should consider. Well, working with hundreds of data teams globally and understanding their challenges and pain points has helped me …  ( 5 min )

A post by Habeeb Hameed  ( 2 min )

Sick of flaky integration tests? You run your tests once — they pass. Run them again — they fail. Maybe the third-party API timed out. Or the response changed. Or your internet blinked. Integration tests should give you confidence, not stress. That’s where deterministic integration testing comes in. Imagine recording your API interactions once and replaying them forever — offline, fast, and predictable. No network. No surprises. That’s exactly what Vcr.HttpRecorder does. It’s inspired by the original Ruby VCR gem, revived for .NET and brought back to life with new features and bug fixes in my fork. In traditional integration tests, you call real services — maybe a payment gateway, an external API, or even another microservice. But real services are unpredictable: They might be slow or d…  ( 5 min )

Overview, Historical Timeline, Problems & Solutions When you write Python code, you use symbols to separate, group, or define parts of the program. These symbols are called delimiters. A delimiter does not perform an action like an operator. Instead, it marks structure and boundaries. In writing, you use punctuation to make ideas clear. A comma breaks up items. A period ends a sentence. In Python, delimiters help the interpreter make sense of what comes next. Python uses delimiters to shape the structure of your code. (1 + 2) * 3 ['a', 'b', 'c'] {"key": "value"} x = 7 def f(): pass You use delimiters to build lists, assign values, pass arguments, and group code. Python requires these markers so it can read your program correctly. When you write a list, call a function, or create a diction…  ( 6 min )

Splitting strings is crucial for effective text management in PostgreSQL. PostgreSQL offers built-in functions designed to handle string splits elegantly, whether you need arrays for flexible querying or rows for easy data normalization. Precisely extracts substrings from structured text. SELECT SPLIT_PART('2025-12-25', '-', 3); -- '25' Creates arrays from strings for easier data manipulation. SELECT STRING_TO_ARRAY('apple,banana,grape', ','); -- {'apple','banana','grape'} Turns delimited strings into rows, simplifying relational data operations. SELECT STRING_TO_TABLE('NY|LA|SF', '|'); -- Rows: NY, LA, SF Splits strings flexibly using regex. SELECT REGEXP_SPLIT_TO_ARRAY('SKU123-ColorBlue', '\W+|\D+'); -- {'123','Blue'} Transforms strings into rows for detailed analysis. SELECT REGEXP_SPLIT_TO_TABLE('Dev.to PostgreSQL guide', '\s+'); -- Rows: Dev.to, PostgreSQL, guide FAQs PostgreSQL string splitting functions? SPLIT_PART(), STRING_TO_ARRAY(), STRING_TO_TABLE(), REGEXP_SPLIT_TO_ARRAY(), REGEXP_SPLIT_TO_TABLE(). Yes, via REGEXP_SPLIT_TO_ARRAY() and REGEXP_SPLIT_TO_TABLE(). STRING_TO_ARRAY() uses exact delimiters, regex functions use patterns. Yes, STRING_TO_TABLE() or REGEXP_SPLIT_TO_TABLE(). Conclusion Mastering string splitting in PostgreSQL isn't just convenient—it can significantly enhance your database efficiency and simplify complex text handling. With built-in functions like SPLIT_PART(), STRING_TO_TABLE(), and regex-based approaches, managing textual data becomes intuitive. For more details, read the article 5 Ways to Split a String in PostgreSQL.  ( 16 min )

🔐 GitGuard – Just-in-Time GitHub Access Control This is a submission for the Permit.io Authorization Challenge: Permissions Redefined GitGuard is a full-stack, production-grade access control and auditing system designed specifically for modern development teams managing sensitive GitHub repositories. It addresses a critical pain point: how to provide fine-grained, secure, and temporary access to GitHub repos — without over-permissioning or sacrificing agility. Think of GitGuard as a “Just-in-Time IAM layer” tailored for GitHub operations. Whether you're a growing startup or a security-conscious enterprise, GitGuard gives you the tools to go beyond GitHub’s default permission model. Users must validate identity via FaceID/Fingerprint before critical access is granted. Powered by Expo + …  ( 5 min )

State management is a critical part of building modern front-end applications. If you've worked with Vue 2, you may be familiar with Vuex. But with Vue 3, a new, simpler alternative has emerged: Pinia. In this article, you’ll learn how to use Pinia to manage application state in a Vue 3 project — from installation to real-world usage. Enjoy! Pinia is the official state management library for Vue 3. It’s lightweight, modular, and built with the Composition API in mind. Compared to Vuex, it offers a simpler syntax, better TypeScript support, and out-of-the-box devtools integration. Benefits of using Pinia: Simpler syntax compared to Vuex First-class support for the Composition API Built-in devtools and TypeScript support Modular design (define as many small stores as needed) 1.In your projec…  ( 6 min )

This is a submission for the Permit.io Authorization Challenge: AI Access Control SkyRulers integrates Permit.io for robust RBAC (Role-Based Access Control) to securely manage actions performed by human users and AI agents in the ordering workflow. (Auto-approved for this demo) Permissions: Approve or reject part substitutions. View all emails and order history. Capabilities: Manage Orders: Approve or reject orders and substitutions. Review Substitutions: Approve or modify suggested part substitutions. Monitor Emails: Track all emails related to orders and substitutions. Audit Logs: Access logs for full accountability. Permissions: Approve quotes. Place orders. Interact with order-related emails. Restrictions: ❌ Cannot modify orders or substitutions directly. Capabi…  ( 5 min )

Kubernetes is powerful—but with that power comes complexity. Whether you're just starting or managing clusters in production, you're bound to hit issues. Here's a list of the top 10 Kubernetes problems developers and DevOps engineers run into—and how to fix them fast. ⚠️ 1. Pods Stuck in CrashLoopBackOff 💥 Problem: Pod starts → crashes → Kubernetes tries again → repeat. 🛠️ Troubleshoot: Check logs for stack traces or config errors. Use livenessProbe and readinessProbe wisely. 🚫 2. ImagePullBackOff or ErrImagePull 💥 Problem: Kubernetes can’t pull the container image. 🛠️ Troubleshoot: Double-check the image path (e.g., myrepo/myapp:latest) 📡 3. Services Not Exposing Pods 💥 Problem: You’ve deployed your app, but it’s unreachable. 🛠️ Troubleshoot: kubectl get svc Verify labels mat…  ( 4 min )

This is a submission for the Permit.io Authorization Challenge: Permissions Redefined I built a Web3-based CMS (Content Management System) designed for managing decentralized content like collections, banners, presale campaigns, and other on-chain/off-chain data. The CMS provides an admin dashboard where team members can log in using their crypto wallets and manage the platform’s content in a more structured and user-friendly way. The key problem it solves is the lack of permission control in many Web3 tools. Typically, dApps allow wallet login but don’t differentiate between users. In my CMS, I introduced fine-grained access control so that different roles (e.g., admin, content editor, viewer/analyst) have access only to the features relevant to them. This improves security, collaboration…  ( 4 min )

We're excited to share something cool we've put together: a chatbot that can actually search through your Google Drive files. To build this we'll use VoltAgent, along with some neat tools like Composio and the Model Context Protocol (MCP). If those names sound a bit technical, no worries, we'll explain everything as we go. Imagine asking a chatbot, Find my presentation about Q3 results, and bam, it digs through your Google Drive and gives you the link. That's exactly the kind of thing we wanted to enable an AI agent that can securely connect to your personal tools, like Google Drive in this case. To make this chatbot work, we needed a few essential pieces: So, first things first: VoltAgent. This is our baby, an open-source TypeScript framework we built specifically to make creating AI a…  ( 6 min )

Whether you're building a side project, open source library, or internal tool, developer documentation helps others understand, use, and contribute to your work. The good news? You don’t need to be an expert to write it. In fact, some of the best docs are written by beginners because they know exactly what’s confusing at first. This guide explains how anyone can write great dev docs and what to focus on, step by step. Think of documentation as the user manual for your code. Without it, other developers have to guess how things work. Good docs: Save people time (including future-you). Reduce questions and support issues. Encourage others to use or contribute to your project. Make your work look professional and trustworthy. Anyone who understands the project can write documentation. In fac…  ( 5 min )

Blogging has evolved far beyond just publishing thoughts online. In 2025, it’s a core digital strategy driving SEO, lead generation, brand awareness, and even revenue. Yet, despite its importance, 90% of blog posts get little to no traffic (Ahrefs), primarily because beginner bloggers unknowingly fall into avoidable traps. Whether you're a solo founder, a content marketer, or a startup trying to grow organically, avoiding these common mistakes is essential. Fortunately, tools like Bloggr.AI are changing the game — not by replacing human creativity but by enhancing it. Let’s explore five critical blogging mistakes beginners make and how Bloggr.AI offers a smart, AI-powered solution to each. Many beginners jump straight into writing without a roadmap — no defined target audience, no content …  ( 5 min )

🔥 Performance Tuning in Java: List, Set, and HashMap with Real-World Examples When working with Java collections, choosing the right data structure can make or break your application’s performance — especially at scale. In this post, we’ll explore how to optimize performance using List, Set, and HashMap — with real-world analogies and benchmarks. Type Ordered? Allows Duplicates? Fast Lookup? Thread-Safe? ArrayList ✅ Yes ✅ Yes ❌ No ❌ No HashSet ❌ No ❌ No ✅ Yes (O(1)) ❌ No HashMap ❌ No Keys unique ✅ Yes (O(1)) ❌ No Imagine you're building a backend system for an online store. You need to: Keep a list of product names in the order they were added Avoid adding duplicate SKUs Find product info quickly by SKU Let’s see how each collection plays a role: List – Preserve Insertion …  ( 4 min )

` How I Created My Own WHOIS Lookup Tool with Mobile Optimization & SEO in Mind WHOIS tools are popular among developers, marketers, and domain buyers. I built my own version of a WHOIS lookup tool using PHP and optimized it for mobile and SEO. 🧩 Features WHOIS API Integration India Timezone Conversion Responsive UI with Roboto Font No use of tags — clean layout Puffx Host Branding SEO Meta Tags 🛠️ Tech Stack PHP WHOIS API: https://whoisapi.example.com/whois?domain=yourdomain.com Tailwind CSS JavaScript (for loading) 📱 Mobile Optimized Grid-based layout Overflow handling for WHOIS output Responsive font sizes 🌍 SEO Tips I Used Keyword in title: Free WHOIS Lookup Tool Meta Description: "Check domain's WHOIS instantly. SEO-optimized & mobile-friendly." No broken links or duplicate content Schema markup (optional) 🔧 Sample API Output 📸 Live Preview Try the WHOIS Tool ✍️ Final Thoughts This tool was simple yet powerful to build. It taught me about APIs, responsiveness, and SEO tricks that actually work. Want to build your own tool? Drop your thoughts below or connect with me. `  ( 3 min )

` How I Built My Own Payment Gateway in PHP Without Using External APIs Building your own payment system sounds like a huge task — but what if I told you it's possible using just PHP and SQL, without relying on third-party services? In this post, I’ll walk you through how I built Puffx Pay, a lightweight payment gateway that works on basic principles of order creation, status updates, and secure callbacks using webhooks. 🚀 Why I Built My Own Gateway Full control over payments Custom branding Security logic as per my rules Zero dependency on third-party services 🧱 Basic Features Order Creation via API Transaction ID Generation Webhook Callback Support Simple UI for Payments Database Logs of Every Transaction 🛠️ Tech Stack PHP (Core) MySQL Database cPanel Hosting Optional: Bootstrap 🧩 Order API Structure Endpoint: https://puffxpay.site/api/create-oder Sample Payload: 🔁 Webhook System Once payment is completed, this is the response sent to your webhook URL: 🔒 Security Tips Use a token for each API call Validate and sanitize all inputs Log IP addresses for fraud detection 🌟 Live Demo Visit Puffx Pay 🤝 Final Thoughts Creating a mini payment gateway gave me control, branding freedom, and real learning. You don’t always need big gateways like Razorpay for internal or basic systems. `  ( 3 min )

Hey there, aspiring app developer! Ever looked at those slick, smooth mobile apps on your phone and thought, "Wow, I wish I knew how to build something like that, but it just seems... complicated"? You're not alone. The world of mobile development can feel vast and intimidating, filled with jargon and seemingly steep learning curves. But what if I told you there's a toolkit out there that makes building beautiful, high-performance apps for both iOS and Android from a single codebase not just possible, but genuinely enjoyable, even for newcomers? flutter tutorial for beginners will guide you through the core concepts step-by-step. You'll learn about fundamental widgets like Text, Image, Row, Column, and Container. You'll get hands-on with state management for simple cases (making something change when you tap a button), and you'll see how Hot Reload helps you iterate quickly. flutter tutorial for beginners is your gateway into this exciting world. Don't hesitate to start small, play around, and build simple things. Every line of code you write is a step forward. Welcome to the journey!  ( 5 min )

Introduction Are you facing issues with generating a valid signature while trying to obtain an access token from the Tuya API using Arduino C++? If you’re encountering a 'sign invalid' error, you’re not alone. This guide explores the common pitfalls during the signature generation process and how to troubleshoot them effectively. Understanding the Tuya API Authentication Process In order to interact with the Tuya IoT platform, every request you make, including obtaining an access token, requires a valid HMAC-SHA256 signature. The signature is created using your client ID, client secret, and a timestamp. A miscalculation, incorrect data types, or even timing issues can lead to the 'sign invalid' error. Common Reasons for 'Sign Invalid' Incorrect Timestamp: Make sure the timestamp you're gen…  ( 5 min )

This is a submission for the Permit.io Authorization Challenge: Permissions Redefined HireFlow is a comprehensive hiring platform that connects candidates, recruiters, and companies in one streamlined ecosystem. For this application, users can take on 3 different roles when creating their account: Candidates can search for jobs, apply to positions, and track application status. Recruiters can post and manage job listings and review applicants Companies can oversee their recruitment process and manage their team of recruiters To login to the application without having to create a new account, simply make use of the following pre-existing credentials: To login to a candidate account: candiUser To login to a recruiter account: recruiUser To login to a company account: compUser The repository…  ( 5 min )

Buy Me a Coffee☕ *Memos: My post explains parameters and arguments in Python. My post explains positional-only parameters in Python. My post explains keyword-only parameters in Python. You can set positional-only parameters and keyword-only parameters together for a function as shown below. */ must be before *: def func(fname, /, lname, age, *, gender): pass def func(fname, lname, /, *, age, gender): pass def func(fname, *, lname, age, /, gender): pass # SyntaxError: / must be ahead of * def func(fname, /, lname, age, *, gender): print(fname, lname, age, gender) func("John", "Smith", 36, gender="Male") func("John", lname="Smith", age=36, gender="Male") func("John", "Smith", gender="Male", age=36) # John Smith 36 Male func("John", "Smith", 36, "Male") func(fname="John", lname="Smit…  ( 4 min )

top AI innovations transforming Indian businesses in 2025 are shaping a smarter, more efficient economy. This article explores how these AI technologies are revolutionizing key sectors, improving operational efficiency, and offering businesses a competitive edge. Healthcare in India has embraced AI with remarkable enthusiasm in 2025. AI-powered diagnostics, virtual health assistants, and predictive analytics are now standard tools in hospitals and clinics. • AI Diagnostic Tools: Tools like Qure.ai and Niramai use machine learning to detect diseases such as tuberculosis and breast cancer early. Virtual AI Assistants: Chatbots like HealthifyMe's AI coach offer personalized fitness and diet recommendations. Predictive Patient Monitoring: Hospitals use AI to predict patient deterioration, enab…  ( 5 min )

Hello Developer Community! Welcome to my blog featuring ten engaging image-processing projects ideal for final-year students. These hands-on tutorials cover OpenCV, machine learning, IoT integration, ESP32, Arduino, TensorFlow and more including applications like license plate recognition, gesture control and facial-attendance systems. Dive in to enhance your skills and practical understanding today. Capturing a moving car’s ID number is challenging for the human eye, but this project makes it possible. The number plate detection system using the ESP32-CAM, programmed via the Arduino IDE, captures an image of a vehicle’s number plate and sends it to a cloud server through an HTTP POST request over Wi-Fi. The server performs OCR to extract the plate number and returns the result in JSON …  ( 6 min )

If you're looking to categorize a list of names in a CSV file efficiently, you're not alone. Many developers find themselves in a situation where they need to assign classifications to items in a large dataset based on certain criteria. In this article, we will explore a straightforward way to replace names with their corresponding categories, such as 'Soccer player', 'MMA fighter', 'NBA player', and 'NFL player', using Python. Understanding the Problem In our example, we have a CSV file containing various names representing athletes from different sports. Our objective is to replace those names with predefined categories without having to manually assign each one. This approach not only saves time but also reduces the likelihood of errors that might occur with manual data entry. Sample Da…  ( 5 min )

Laravel has long been the go-to PHP framework for developers seeking elegance, power, and productivity. With every release, it raises the bar for modern web application development. The latest version of Laravel, Laravel 12, was officially released on February 24, 2025, and it’s packed with enhancements that streamline development, boost performance, and improve security. If you’re considering a new project or planning an upgrade, here’s everything you need to know about Laravel 12’s latest features and updates. Introduction to Laravel 12 Laravel 12 is the latest version of Laravel, building on the framework’s tradition of combining developer-friendly tools with robust performance. This release is not just about adding new features-it’s about refining the core, ensuring long-term stability…  ( 6 min )

jienweng.com Hi all. I recently rebuilt my personal site using 11ty, and I wanted to share a bit about why I chose simplicity over flashy design. Like many developers, I started with a more complex stack — Astro, React, lots of moving parts. It looked cool, but it started to feel like I was building for the tools instead of myself. So I started over with 11ty. It’s fast, flexible, and just lets me focus on content. Tbh I hate npm, and with 11ty i like that there's no bundlers, no frameworks. Just clean HTML, Markdown, and a bit of templating. The site is still a work in progress, but I like how it feels now — more personal, less performative. It’s a place for my notes, thoughts, and projects. Nothing fancy. Just mine. Would love any feedback or thoughts — especially from others who’ve simplified their stacks or gone the “digital garden” route. Thanks for reading!  ( 3 min )

Do you know there are 74 built in components in canvas Power Apps (I counted icons as one not each one), and that's before we import custom PCF components. And I wonder how many do you use, let me take a guess that in 90% of apps you only use the below 10 (modern or classic): label button input combobox datepicker vertical gallery image icon form container If you read this in a year we all know Copilot will be on the list too So I wanted to talk about 6 really cool components you should be using more often. Call out Im cheating, some are single components, some are groups, so it's not really 6 😎 HTML Timer Charts Map Add Picture Import/Export The first 2 (HTML and Timer) are probably used more then the rest, so if you have already used them feel free to skip them, but even if you use them…  ( 7 min )

Authentication is at the heart of every secure web application. As frontend developers, understanding modern authentication flows and how to implement them securely is crucial. This article explores the most widely used authentication methods today: OAuth 2.0, JWT (JSON Web Tokens), and OpenID Connect, and introduces some emerging approaches. Authentication determines who the user is, and authorization determines what they can access. An insecure authentication mechanism can expose your app to session hijacking, data leaks, and impersonation attacks. Modern SPAs (Single Page Applications) demand decoupled and secure authentication techniques that work well across multiple clients, including web, mobile, and APIs. OAuth 2.0 is an authorization framework, not an authentication protocol by it…  ( 4 min )

I originally posted this post on my blog. I hate seeing "passionate" listed as a requirement in job postings. How can we measure passion? Is there a quiz, like those magazine questionnaires? "Find out if you're a passionate coder in less than 5 minutes with 10 easy-to-answer questions." The best coders I've met at past jobs weren't what we'd call passionate. By passionate, I mean making open source contributions, speaking at conferences, and writing posts. They were busy enough making money. The other day, Miguel, one of my email subscribers, shared a similar experience. Here's an excerpt of his email: Personally, I've become discouraged in my programming career and no longer aspire to work at one of the most important tech companies. I just want to pay my bills and meet my family's needs.…  ( 4 min )

If you're a developer or WordPress enthusiast looking to containerize your website for portability and ease of deployment, this step-by-step guide will walk you through the entire process—from setup to containerization. 📦 Prerequisites Docker & Docker Compose installed A basic WordPress website (with custom plugins/themes if any) (Optional) Exported WordPress content in .xml format 📁 Project Structure Start by creating a working directory: wordpress-docker/ ├── Dockerfile ├── wp-content/ │ └── plugins/ │ └── hello-world-sample/ ├── wp-data.xml # (optional) exported WordPress content └── docker-compose.yml 🐳 Dockerfile for WordPress FROM wordpress:6.5-php8.1-apache ##Copy your plugin into the WordPress plugin directory COPY wp-content/plugins/hello-world-sample /var/www/html/wp-content/plugins/hello-world-sample ##Fix permissions (optional) RUN chown -R www-data:www-data /var/www/html/wp-content/plugins/hello-world-sample 🧩 Docker Compose File version: '3.8' services: wordpress: build: . ports: - "8080:80" environment: WORDPRESS_DB_HOST: db WORDPRESS_DB_USER: wp_user WORDPRESS_DB_PASSWORD: wp_pass WORDPRESS_DB_NAME: wp_db volumes: - wordpress_data:/var/www/html db: image: mysql:5.7 restart: always environment: MYSQL_DATABASE: wp_db MYSQL_USER: wp_user MYSQL_PASSWORD: wp_pass MYSQL_ROOT_PASSWORD: rootpass volumes: - db_data:/var/lib/mysql volumes: wordpress_data: db_data: 🚀 Launch WordPress docker-compose up --build Your site will be available at: http://ec2-ip/wordpress  ( 3 min )

Check out this Pen I made!  ( 2 min )

In 2023, I left tech to prepare for UPSC — studied governance, ethics, society. But no matter how hard I tried, I kept building in the background: automation scripts, app ideas, systems. Then it hit me: 💡 Tech itself is impact. So I returned to tech, stronger than before. Now I build learning tools, solve hiring problems using AI, and mentor others on the same path. 📖 Read the full story on Medium 👉 From UPSC to Tech – Full Story 📍 Also on LinkedIn: 🔗 LinkedIn Article You’re allowed to pivot. Growth isn’t always linear. Purpose and passion can coexist. 📬 Connect or DM me: 🔗 LinkedIn CareerSwitch #UPSCtoTech #WomenInTech #LifeAfterUPSC #TechWithImpact #DEVCommunity #Storytelling #CareerJourney  ( 3 min )

Python Programming Language In the ever-evolving world of technology, programming languages serve as the building blocks for software development, data analysis, artificial intelligence, and more. Among these, the Python programming language has emerged as one of the most popular and versatile tools for developers, scientists, educators, and businesses alike. Known for its readability, simplicity, and power, Python has revolutionized the way we approach programming by making it more accessible and efficient across various domains. Python is a high-level, interpreted programming language created by Guido van Rossum and first released in 1991. The primary philosophy behind Python emphasizes code readability and simplicity, making it ideal for both beginners and experienced developers. Its…  ( 5 min )

Introduction If you're developing a Tauri app and want to customize the hover text that appears when your application is minimized to the dock, you're in the right place! The hover text, also known as the tooltip, often defaults to the app name specified in your configuration file. In this guide, we'll explore how to change the hover text to reflect your specific preferences, such as setting it to 'Pepper', the name of your app. Why Hover Text Matters Hover text or tooltips provide users with quick information about what an application does. In the context of a Tauri app on the dock, having clear and informative hover text can improve user experience and provide clarity regarding the app’s purpose. It eliminates ambiguity, especially for apps with similar names or purposes. Understanding T…  ( 5 min )

For years, JavaScript has powered the modern web—but what if you could take things to a whole new level of performance? Imagine bringing near-native execution speed right into your browser, opening doors to gaming, video editing, simulations, and even machine learning—all running seamlessly inside your web app. Welcome to the world of WebAssembly (Wasm)—a game-changer for frontend and backend developers alike. WebAssembly is a binary instruction format designed to run at near-native speed in web browsers. It's language-agnostic, meaning you can write code in C, C++, Rust, Go, and other languages, then compile it to Wasm and run it alongside JavaScript. Key advantages of WebAssembly: 🚀 Blazing-fast performance — thanks to low-level, optimized bytecode 🔒 Security-first — runs in a safe,…  ( 4 min )

OKRs vs. KPIs: Setting Effective Goals for Developer Teams Pratham naik for Teamcamp ・ May 5 #productivity #devops #opensource #performance  ( 2 min )

OKRs vs. KPIs: Setting Effective Goals for Developer Teams Pratham naik for Teamcamp ・ May 5 #productivity #devops #opensource #performance  ( 2 min )

OKRs vs. KPIs: Setting Effective Goals for Developer Teams Pratham naik for Teamcamp ・ May 5 #productivity #devops #opensource #performance  ( 2 min )

OKRs vs. KPIs: Setting Effective Goals for Developer Teams Pratham naik for Teamcamp ・ May 5 #productivity #devops #opensource #performance  ( 2 min )

This is a submission for the Permit.io Authorization Challenge: Permissions Redefined You know what I've done a lot? Frontend: lovable, tsx, React Backend: Node.js + Express proxy Permit PDP: Docker container (works great locally, not separately hosted… details below) Permit Cloud: For managing roles, resources, and policies 🎯 The Goal It's gotta be obvious that it works. So I made a proxy server, because API keys. Is that the correct decision? ask me later. currently it probably isn't hosted, but what definitely isn't: PDP (Policy Decision Point) runs locally in Docker — lovable didn't work with this the first time I tried, but at least it works on my machine Defined resources like jam and submission, and actions like create, judge, update. Set up global ro…  ( 4 min )

In this article, we review what ACI. DEV platform is. This project was trending no.1 on Github on May 3, 2025. We will look at: What is ACI.dev? Features. Integrations. ACI.dev is the open source platform that connects your AI agents to 600+ tool integrations with multi-tenant auth, granular permissions, and access through direct function calling or a unified MCP server. Connect your AI to any tool and build reliable AI agents. I found the following features on ACI.dev 1. Pre-built Tool Integrations Effortlessly integrate 500+ essential tools including Gmail, Hubspot, Notion, and Slack into your AI agents with just one connection. 2. Managed Agent Authentication Allow end-users to authorize your AI agents with access to their accounts through OAuth. ACI.dev handles all the token …  ( 4 min )

Abstract This post delves into the safety and security of GitHub Sponsors, an innovative platform enabling financial support for open-source projects. We examine technical, financial, and personal security measures built into the system, provide a historical background and context, and offer practical examples and best practices for safe usage. We also discuss challenges, limitations, and the future outlook for open-source funding solutions, comparing GitHub Sponsors with similar platforms like Patreon. Throughout the post, we include tables and bullet lists to highlight key points, incorporate authoritative hyperlinks, and present insights that are both technical and accessible. Open-source development is a cornerstone of modern technology innovation, but sustaining projects financially…  ( 9 min )

Scared of System Design? Try This Tradeoff Quadrant Smile Gupta ・ May 4 #webdev #systemdesign #javascript #frontend  ( 2 min )

🚀 Featured AI/ML Projects 🌱 Telegram Crop Recommendation Bot 🎯 Collaborative Recommendation System (No-Code AI) 🔍 Fraud Detection Model  ( 3 min )

Introduction When working with SQL, especially with outer joins, it's crucial to understand how to filter your results effectively. In your case, you're looking to perform a right outer join between two tables and then conditionally include or exclude rows based on the status from one of these tables. This article will break down how to efficiently filter results using outer joins in SQL while ensuring you get data according to specific conditions. Understanding the Outer Join Behavior Outer joins, particularly the right outer join you mentioned, are designed to include all the entries from the right table (in this case, table2), along with matching rows from the left table (table1). If there are no matches, SQL will return NULL for columns from table1. This behavior poses a challenge when…  ( 4 min )

Optimization algorithms are the unsung heroes behind many computational tasks, from training machine learning models to solving engineering problems. A recent paper, A Comparative Analysis of Optimization Algorithms: The Himmelblau Function Case Study (April 22, 2025), dives into how four algorithms tackle the Himmelblau function, a tricky test problem with multiple solutions. This article distills the study’s core findings for developers, keeping the technical details intact but simple and math-free. What’s the Himmelblau Function? The Himmelblau function is a benchmark problem used to test optimization algorithms. It’s like a hilly landscape with four identical “valleys” (global minima) where the best solutions lie, plus some deceptive “shallow dips” (local minima) that can trap algorith…  ( 6 min )

package demo_programs; public class Looping3 { public static void main(String[] args) { // TODO Auto-generated method stub int total=8; int count=3; int eaten=0; while (count 1) { securityCount += 1; box = box / 2; } System.out.println(securityCount); } } Find divisors count of given Numbers package demo_programs; public class Looping5 { public static void main(String[] args) { // TODO Auto-generated method stub int no=20; int div=1; int count_of_divisors = 0; while (div<=no) { if (no%div == 0) System.out.println(div); //count_of_divisors = count_of_divisors + 1 count_of_divisors+=1; div+=1 ; }}}  ( 3 min )

Hey folks! I recently finished a fun little C++ project that simulates a butterfly flying around your desktop — but with a twist: it does so in a controlled environment for custom text input! Remember the DVD logo that people love when it touches the corner based on a fixed path, this one is unpredictable as its movement is random. Give it a try by downloading the Github Release: Hover_Bug Spawns a entered text that "hovers" on top of all windows. Almost like a DVD logo that people love when it touches the corner. Runs seamlessly on Windows — think of it like a lightweight desktop companion. Language: C++ Framework: Win32 API for desktop-level rendering and layering Executable Output: Hover_Bug.exe and main.exe Release Build: Available under the release branch on GitHub — only 2.exe fi…  ( 4 min )

Setup doc-slot-core 1.Clone project and open with VSCode: https://gitea.plp19.com/dev-public/doc-slot-core-manual npm install npm start 2.Setup follow README http://localhost:3000/docs/intro Setup prject  ( 2 min )

If AWS is the engine powering your infrastructure, CloudWatch is the dashboard that helps you drive with visibility, precision, and control. In this blog, we’ll break down: What CloudWatch actually does Metrics: CPU, memory, network, disk, custom metrics 🧱 CloudWatch Core Components Step 1: Create an Alarm aws cloudwatch put-metric-alarm \ 📥 Use Case: Centralized Logging with CloudWatch Logs Lambda functions Install CloudWatch Agent Go to CloudWatch → Dashboards (WriteIOPS + ReadIOPS) for EBS volumes const https = require("https"); exports.handler = async (event) => { const req = https.request(options); 🚨 Alert: ${message} })); fields @timestamp, @message @message like /ERROR/ and status >= 500 filter duration > 3000 🧠 Best Practices for CloudWatch 💡 Cost Optimization Tips Lambda functions { "source": ["aws.ec2"], ✅ CloudWatch Cheat Sheet With proper setup, it becomes your early warning system, performance profiler, and automation engine — all in one. Whether you’re running microservices, serverless apps, or monoliths, CloudWatch brings peace of mind to your AWS operations. 💬 Let’s Talk! Drop your setup, questions, or tips in the comments. Let’s build reliable systems together — one metric at a time. AWS  ( 5 min )

Table of Contents Why Linux Security Matters The Power of Permissions User Management: Only the Right People Get In Updates and Patching: Stay Ahead of Threats Firewalls and Network Safety Real-Life Example: Locking Down a Shared Server Bonus Tips: Extra Layers of Protection Wrapping Up Let’s face it: no system is invincible. Linux security is all about keeping your system safe from unauthorized access, data breaches, and cyber threats-using smart design, open-source transparency, and a community that’s always on the lookout. The best part? You’re in control. Permissions are the backbone of Linux security. Every file and folder has an owner, a group, and a set of permissions (read, write, execute). This setup means you decide who can see, change, or run what-…  ( 4 min )

This is a submission for the Permit.io Authorization Challenge: Permissions Redefined If you want to immediately get setup. Follow the instructions at https://github.com/AnsellMaximilian/permishout For this challenge, I decided to recreate Twitter/X, complete with access control. It's called PermiShout. Where a Shout is like a Tweet or post. I thought this would be perfect to show off Permit.io's base capabilities. Here's the app workflow: As you can see some shouts are different than others. Some have a delete button -- that's because Permit.io has determined that the current user has the authorization to do that. Some reply buttons are disabled and some are not. That's also Permit.io doing the work. Here's some conditions that has been set up for a user to be able to reply: If …  ( 15 min )

“I dream of living abroad one day. And I know I’m not the only one.” But the real question is — why do so many Indians, especially from the middle class, want to leave the country? Let’s talk honestly and openly. We pay: Income Tax GST Fuel Tax Road Tax Toll Tax But what do we get? ❌ Broken roads ❌ Poor public transport ❌ Slow government services ❌ Dirty cities Dirty washrooms Outdated machines Less staff Long waiting times We are forced to go to expensive private hospitals even after paying taxes for public healthcare. FSSAI should protect us from harmful food. But in reality: Cold drinks full of sugar Packaged food full of chemicals Harmful products easily available These are still approved by FSSAI, which runs on our tax money. 10–15 year old syllabus No practical knowledg…  ( 4 min )

Abstract: In the fast-paced world of digital innovation, decentralization is transforming how creators and indie hackers monetize and manage their digital assets. Infinex Patrons (XPATRON) is a breakthrough platform powered by blockchain technology that offers seamless NFT minting, robust smart contract integration, and community engagement— all without middlemen. This post explores the context, core features, and functionality of XPATRON, while highlighting practical applications for indie hackers, potential challenges, and future trends. Drawing from expert insights in blockchain, open source innovation, and decentralized finance, we detail how indie hackers can leverage XPATRON’s infrastructure to foster trust, enhance revenue opportunities, and maintain creative freedom. In modern dig…  ( 9 min )

Introduction If you're looking to create a PHP script that dynamically reads permissions from a text file and assigns them to variables, you're in the right place! In this guide, we'll walk through a solution that accomplishes this by utilizing plain text files for configurations, allowing an easy setup for your template. You'll learn how to handle permissions, and variable assignment based on the contents of your file. Understanding the Configuration File The main file we will be reading from is Administrator.txt. This file contains various configurations listing the permissions. Each permission is either just a line with the permission name or a line formatted as permission_name: value; that assigns a power value. Here’s what our Administrator.txt file looks like: /* Administrator con…  ( 4 min )

Preamble: Troubleshooting, which is the process of figuring out why something isn't working, is a crucial skill in many areas, including networking, computer systems, and even everyday situations. CompTIA emphasizes a consistent troubleshooting method across its courses, and it's a method that can be used for all sorts of problems. When you're trying to solve an issue, it's important to follow these steps in order. Skipping steps can lead to missing important details, not understanding the root cause of the problem, or making it harder to remember what you did for future reference. Below are the troubleshooting steps you will need to go through: Identify the problem Gather information. Question users. Identify symptoms. Determine if anything has changed. Duplicate the problem, if possibl…  ( 13 min )

Pack your bags up the day before. Make sure to get the basics, underwear, socks, toothbrush, medications, pjs, travel documents, license, passport, – don't get deported, little gifts, etc... 'etc...'? This etcetera is the other stuff you forget and will inevitably have to purchase at your destination. Yes, I account for this because sometimes it doesn't matter how much time ahead I pack there is usually something I missed packing and have to either bother a relative to let me borrow it. I don't love forgetting stuff but at this point I rather forget than having to change my ways, like packing weeks before like my mother does. Smart lady, never forgets anything. I'm more like my dad in these type of things. 'Men'. I'm not sure if it's a fair thing to asume, 'all men are bad at packing' but I tell you, there is a pattern. My male cousin, doesn't travel, I wonder if he would also suck at packing. I think having a comfortable amount of money makes you care less because you can just purchase what you forget at the place where you go to maybe, – saying this in the most possibly humble way. For example, I forgot to pack belts, now I have to go to a store and buy something I already had for free at home.  ( 3 min )

A lightweight RabbitMQ framework for Node.js, built to eliminate boilerplate and let you focus on business logic. Let’s say you’re building an app with several moving parts—maybe one service processes user signups, another sends welcome emails, and another tracks analytics. Normally, these services would need to talk to each other directly and immediately—which makes things tightly connected and harder to scale. Messaging and event-driven architecture solve this by letting each part send and receive information independently. It works like this: When something important happens (like a new user signing up), that part of the app sends a message—think of it like dropping a letter in a mailbox. RabbitMQ. Here’s a simple example: A user signs up → The app sends a user.created message → The > e…  ( 6 min )

Creating a Fibonacci sequence in JavaScript is a fascinating way to explore the world of programming and mathematics. The Fibonacci sequence is defined by the relation where each number is the sum of the two preceding numbers, starting from 0 and 1. In this article, we'll explore how to implement this sequence in JavaScript using a while loop, similar to the summation approach that you shared. Let's delve into writing an efficient script for generating Fibonacci numbers. Understanding the Fibonacci Sequence The Fibonacci sequence starts with 0 and 1, and every subsequent number is derived from the sum of the two previous numbers. A brief look at the series reveals: 0, 1, 1, 2, 3, 5, 8, 13, 21, ... This characteristic property makes it a popularly studied sequence in both mathematics and pr…  ( 5 min )

📋 Table of Contents What I Built Demo Project Repo My Journey Using Permit.io for Authorization I built AuthClinic, a comprehensive healthcare platform that revolutionizes how medical data access is managed. This isn't just another healthcare app—it’s a carefully crafted solution that addresses one of the most critical challenges in healthcare: secure and flexible data access control. The platform allows healthcare providers, patients, and caregivers to manage medical records, health plans, and sensitive information with unprecedented precision. What sets it apart is its sophisticated permission system that understands the complex relationships in healthcare—from family members to professional caregivers, and everything in between. The real magic happens in how it handles permi…  ( 4 min )

“Summon a daily contribution. Maintain the illusion. Worship the green.” You ever stare at your GitHub contribution graph like it's a Tamagotchi you forgot to feed? Yeah, me too. So I built something unholy: A Bash-based automation daemon that ensures your GitHub profile always looks... alive. It commits. It pushes. It even wakes your computer from the dead to do it. ⏰ Schedules fake-but-believable commits at randomized human hours 🔁 Retries if GitHub rejects your offering 💾 Logs your ritual attempts and successes 🌴 Vacation mode, so your ritual pauses when you need rest (or alibis) 🔥 Self-healing if a ritual was missed (triggered by guilt and grep) 👁️ macOS popup warnings like: > “⚠️ No ritual detected today. The square is empty. You are exposed.” 🧙 Choose your commit incantations like: feat: added function nobody asked for fix: removed existential crisis from variable name 📜 Add custom altar messages 🔓 Unlock rare achievements like: "100 Days of Devotion" "The Sacred Streak" ✅ Daily ritual cron + safety check daemon 🪞 GitHub visibility flip (goes public, commits, hides again) 🧙‍♀️ Bash installer with prompt-based setup 🏕️ Vacation flag toggle for burnout mercy 🧾 .command launcher for double-click ritualism 🎨 Coming Soon: SVG badges GitHub profile theme pack Guilt Daemon™ (shames you in Slack when your squares go dark) Yes. I built it for fun. I also use it daily. It’s part spiritual theater, part productivity placebo, and part real automation. Bash cron, pmset, at, and osascript (macOS) GitHub CLI (gh) Dark magic I'm testing the waters. If enough devs want this, I’ll clean it up, ship a proper version, maybe even add a front-end GUI (Tauri? React? Electron? We’ll see). Leave a comment if you'd actually use it — or just want the GitHub link. “Coding is a ritual. This just makes it official.”  ( 4 min )

This is going to be a quick Devlog, because I just want to get back to this issue I'm having and figure out a solution for it. I've gone back to the drawing board, trying to figure out how to effectively unwrap the donut-shaped Voronoi diagram I have for my river tiles. I think this is the third week I've been working on the same problem now, so I'm getting a little frustrated because 3 weeks is a lot of time that could have been spent working on some other part of the game. I just feel like when I do solve this, one - I won't have to think about it again, and two - the visual pay-off will have been worth it. I also feel like I've invested too much time to not get some kind of pay-off for this feature. The biggest issue that I'm having is that when I have the shapes aligned as they leave one of the corner tiles and enter the straight tile, by the time they flow along the straight path in time to reach the bottom, they're not quite aligned. Now I think the problem I'm having is that I've got a slight overlap on the tiles, the row beneath covers the row above by a couple of pixels - enough to make the borders around the tiles match up. This looks fine in practice, but I need to compensate for that when aligning the shapes, and I feel like this is throwing a spanner in the works. So, I'm redoing my hex grid, and I'm using this article as a reference... https://www.redblobgames.com/grids/hexagons/ I'm going to try and math my way through this tonight. Wish me luck! Cheers, Dan.  ( 3 min )

This article will introduce how to quickly import csv or txt files larger than 1g into the database. Here, we prepared a CSV file with 10 million rows x 30 columns x 4GB. At first, I tried to import it with Navicat. The first problem I encountered was that the encoding format was unknown, which led to many attempts to find the correct encoding. The second problem is that Navicat reads and writes one by one. Although this does not take up memory, the speed is very slow. The third problem is that halfway through the import, an error was reported because the field length was not enough! ! ! I had to reset the field length and import from 0 again. . . What's worse is that after setting one field, another error was reported. . . Now, we use the DiLu Converter Import tool to solve these problems one by one. Encoding: It can be automatically identified by default (for files with unknown encoding). If the encoding format of the file is known, you can select or enter its encoding format to speed up the parsing speed. Chunk Size: You can set the number of rows to import at a time according to the available memory of your computer. My computer has a total of 16G memory, about 9G is available, and 500,000 is set in a batch. Here, you must set the size according to the available memory. If the setting is too large, the memory may overflow, and if the setting is too small, it will not speed up. And The just click start You can see that it takes about 20 seconds to import a batch of 500,000 rows, and the memory usage is less than 1G Finally, it took about 5 minutes to import this csv file of 10 million rows x 30 columns x 4GB, and the maximum memory usage was about 1G. Because the tool imports files in batches according to batch size, no matter it is 1 file or hundreds or thousands of files, no matter a single file is 1G or 100G, as long as the batch size is set reasonably, it can be imported quickly, stably and without consuming memory.  ( 4 min )

Creating generic structures in Rust can initially seem challenging, especially when it comes to default types. In this article, we will explore how to create a generic structure with a default type, allowing users to omit the generic parameter when defining instances. We’ll investigate why the Rust compiler requires explicit type annotations in certain situations and provide a step-by-step solution to this common problem. Why Does Rust Require Explicit Type Annotation? Rust is a statically typed language, which means types are known at compile time. When you define a generic structure, the compiler often needs to understand what specific type to use for the generics. In your code example, you're trying to instantiate C without specifying its type, which results in the following error: erro…  ( 4 min )

If you’ve ever played with dominoes, you know that the order of the numbers doesn’t matter—[1,2] is the same as [2,1]. That's the central idea behind this popular LeetCode problem: 💡 Given a list of dominoes, return how many pairs of dominoes are equivalent. Two dominoes [a, b] and [c, d] are equivalent if: (a == c and b == d) or (a == d and b == c) Let's dive into the most optimal way to solve this! Instead of comparing every pair (which would take O(n²) time), we can: Normalize each domino: [a, b] becomes [min(a, b), max(a, b)] Use a hash map to count how many times each normalized domino appears. Every time we see a duplicate, we count how many previous identical dominoes we've seen. Add that count to the result (because every new domino can pair with all previous identical ones). Inp…  ( 4 min )

OpenSearch, a powerful distributed search and analytics engine, offers high scalability and near real-time search capabilities. However, as data volume and query complexity grow, performance bottlenecks often emerge—particularly around indices and shards. This guide breaks down actionable strategies to optimize indexing, querying, and shard management for improved performance and cluster health. Index: A logical namespace that maps to one or more physical shards. Shard: A basic unit of storage and search in OpenSearch. Each shard is a Lucene index. Performance is tightly tied to how indices and shards are structured, distributed, and queried. Too many shards create overhead; too few limit concurrency. Aim for ideal shard sizes between 10–50 GB. Avoid the default 5 shards unless justified. …  ( 4 min )

Originally posted on May 4, 2025 We’ve officially reached Build 8 — our second milestone — and Tavrn is starting to feel like a real platform. This post covers our new server system, real-time messaging, roles, settings, and a few things we’re still keeping under wraps (👀). We’ve been quiet… because we’ve been building.\ Tavrn has officially hit Build 8, our second milestone. This one’s a big deal. After a full system reset not too long ago, we’ve been sprinting toward one of the most important parts of any chat app: servers. And now? They’re finally working.\ ✅ Real-time messages\ channel This marks the first time Tavrn feels like a platform (to me atleast), not just a prototype. With the server system online, Tavrn moves from “messaging app” to full-fledged community space.\ how people come together. Roles let communities self-moderate.\ buttery smooth. Of course, we’re still ironing out a few things — but this is the moment we’ve been working toward. We’ll be honest — Build 8 isn’t just about what’s been revealed.\ other things in the works.\ But if Build 8 is this solid already?\ We’re moving fast, and we’re not stopping.\ intent, care, and a little bit of chaos.\ Stay tuned.\ — Tavrn  ( 3 min )

Desde su popularización alrededor de 2011, la arquitectura de microservicios ha generado gran interés tanto por su concepción teórica como por su aplicación práctica. La promesa de descomponer sistemas complejos en unidades independientes, facilitando despliegues ágiles, escalabilidad granular, monitoreo detallado y desarrollo autónomo, impulsa de manera significativa la eficiencia en las distintas etapas del ciclo de vida del software. No obstante, ante este conjunto de beneficios, la adopción de esta arquitectura en cualquier proyecto puede resultar riesgosa si no se aborda con una comprensión profunda de las mejores prácticas. Una arquitectura de microservicios mal diseñada puede fácilmente igualar, o incluso superar en complejidad y dificultades, a un sistema monolítico tradicional. Im…  ( 4 min )

PostgreSQL is a powerful and feature-rich open-source relational database, but like any complex system, its performance depends heavily on how it's used. Whether you're managing a startup app or a large-scale enterprise platform, optimizing PostgreSQL can lead to massive gains in speed, scalability, and efficiency. In this article, we break down 12 proven strategies to improve database performance—covering indexing, caching, query optimization, and architectural techniques. Create indexes based on your most common query patterns. Indexes allow PostgreSQL to find rows faster by avoiding full table scans. Use EXPLAIN ANALYZE to identify slow queries and missing indexes. Materialized views store precomputed results of complex queries, making reads faster. CREATE MATERIALIZED VIEW fast_view AS…  ( 4 min )

Daily JavaScript Challenge: Find the Missing Number in Consecutive Array Hey fellow developers! 👋 Welcome to today's JavaScript coding challenge. Let's keep those programming skills sharp! Difficulty: Easy Topic: Array Given an array containing consecutive integers from 1 to n with one integer missing, find the missing number efficiently. https://www.dpcdev.com/ Fork this challenge Write your solution Test it against the provided test cases Share your approach in the comments below! Check out the documentation about this topic here: https://en.wikipedia.org/wiki/Arithmetic_progression How did you approach this problem? Did you find any interesting edge cases? What was your biggest learning from this challenge? Let's learn together! Drop your thoughts and questions in the comments below. 👇 This is part of our Daily JavaScript Challenge series. Follow me for daily programming challenges and let's grow together! 🚀 javascript #programming #coding #dailycodingchallenge #webdev  ( 14 min )

Introduction When developing a Rust application, using environment variables can streamline configurations and various setups. However, if you encounter the error 'LOG_FILE must be set' while trying to log messages from your application, it might indicate that your application isn't reading the .env file correctly. Let's delve into how to resolve this issue so that your Rust application can access the LOG_FILE variable seamlessly. Understanding the Issue The error thread 'main' panicked at 'LOG_FILE must be set: NotPresent' signifies that the program attempted to retrieve the LOG_FILE environment variable but could not find it. This usually happens for a couple of reasons: The .env file is not being loaded properly. The environment variable is incorrectly specified or is missing. The Role …  ( 5 min )

Acting US Attorney for the Eastern District of New York (EDNY) John Durham has departed as President Donald Trump’s pick takes control of the office. In a May 5 notice, the US Attorney’s Office for EDNY said Joseph Nocella will serve as interim US Attorney for the region for 120 days or until a Senate-confirmed nominee assumes the role. Nocella’s appointment came as jury selection began in the criminal trial of Braden John Karony, the former CEO of crypto firm SafeMoon. It’s unclear how the advancement of Nocella, appointed by US President Donald Trump this month, could affect prosecutors’ case against Karony, who faces charges of securities fraud conspiracy, wire fraud conspiracy, and money laundering conspiracy. Nocella said he intended to help prosecute “narcotics-traffickers, gang memb…

ChatGPT-maker OpenAI has abandoned plans to become a for-profit company and reaffirmed commitment to its nonprofit status.  In a May 5 blog post, OpenAI confirmed plans to convert its for-profit business unit into a so-called Public Benefit Corporation (PBC), which would remain under the nonprofit’s control. PBCs are for-profit companies that are legally obligated to prioritize a social mission alongside the interests of shareholders. The plans mark a reversal for OpenAI, which had previously floated a for-profit conversion involving spinning out the nonprofit entity. “OpenAI was founded as a nonprofit, and is today overseen and controlled by that nonprofit. Going forward, it will continue to be overseen and controlled by that nonprofit,” the ChatGPT-maker said.  This can be done without…

The Securities and Exchange Commission’s (SEC) enforcement approach on crypto firms has left a lasting “regulatory overhang” within the industry, according to Devin Finzer, co-founder and CEO of OpenSea.  Speaking to Cointelegraph, Finzer said that during Biden's administration the agency unfairly targeted good actors in the crypto space, including OpenSea. “There's all sorts of digital assets, you know, you shouldn't treat them all the same. That's obvious. But I think the approach that the prior SEC was taking was kind of this, you know, very, very generic.” The SEC issued a Wells notice — a formal notification that is often a precursor to enforcement action — to OpenSea in 2024, alleging that the NFT marketplace was operating as an exchange for unregistered securities. At the time, Finz…

US President Donald Trump’s crypto businesses are drawing increased scrutiny on Capitol Hill and beginning to influence the progress of US digital asset legislation. As Republican lawmakers in the US House of Representatives unveiled their draft of a digital asset market structure bill on May 5, Democrats prepared for a united response to Donald Trump’s deepening connections with the industry. Speaking to Cointelegraph on May 5, a Democratic staffer with knowledge of the matter said that House Financial Services Committee Ranking Member Maxine Waters planned to lead some members of her party out of a Republican-led hearing discussing digital assets. The May 6 hearing, entitled “American Innovation and the Future of Digital Assets” and led by Committee Chair French Hill, could address draft…

Key takeaways: Bitcoin price slips, but BTC dominance is on the rise. Sizable purchases by Strategy and the spot BTC ETFs highlight institutional investors’ appetite for Bitcoin. Bitcoin’s (BTC) price has dropped by 4.3% in the last three days after nearly reaching $97,900 on May 2. Despite showing resilience at the $94,000 level on May 5, some traders are disappointed that strong institutional inflows have not been enough to maintain bullish momentum. However, several encouraging signs suggest that a new all-time high for Bitcoin in 2025 remains within reach. Bitcoin market share excluding stablecoins. Source: TradingView / Cointelegraph Bitcoin’s dominance over the broader cryptocurrency market has surged, currently standing at 70%, its highest since January 2021. This has occurred de…

The United States Department of the Treasury has sanctioned a Myanmar militia group known as the Karen National Army (KNA), accusing it of crypto-related scams and other criminal activities. According to a May 5 press release issued by the agency, the Karen National Army has been orchestrating a variety of crypto scams, including the infamous “pig butchering” scam, which lures victims into contributing more and more to fake crypto schemes. Americans “have collectively lost billions of dollars” from scams such as those emanating from Myanmar, the release reads, without specifying an amount. “Today, the U.S. Department of the Treasury’s Office of Foreign Assets Control (OFAC) sanctioned the Karen National Army (KNA), a militia group in Burma, as a transnational criminal organization, along …

Asset manager VanEck has asked US regulators for permission to list an exchange-traded fund (ETF) holding BNB, the native token of Binance’s BNB Chain, regulatory filings show.  The ETF is designed to accumulate spot BNB (BNB) tokens and “may, from time to time, stake a portion of the [fund’s] assets through one or more trusted staking providers,” according to the ETF’s S-1 prospectus. The filing marks the first time an asset manager has filed for a BNB ETF in the United States. The BNB token has a market capitalization of roughly $84 billion, according to data from CoinMarketCap. As of May 5, BNB stakers earn a yield of approximately 2.5%, according to data from Stakingrewards.com.  Binance’s BNB Chain is among the most popular smart contract networks, with a total value locked (TVL) of n…

Crypto users are weighing in as Alex Mashinsky, the former CEO of Celsius Network, prepares to stand before a judge on May 8 to face sentencing for commodities fraud and a fraudulent scheme to manipulate the price of the platform’s token. In a May 2 filing in the US District Court for the Southern District of New York (SDNY), prosecutors released several impact statements from individuals affected by the collapse of Celsius filed after the initial deadline. Though at least one suggested clemency for the former CEO, many told the court about the financial and personal losses caused by the crypto firm filing for bankruptcy, and hinted that Mashinsky should be held accountable for misrepresenting the company. “Many of the people who participated in this fraud, benefited from this fraud, and p…

Key points: Bitcoin is witnessing a tough battle between the bulls and the bears at the $95,000 level. Solid buying by spot Bitcoin ETF investors last week signals a positive shift in investor sentiment.  Select altcoins have held their support levels, increasing the likelihood of a short-term up move. Bitcoin (BTC) slipped below the breakout level of $95,000 on May 4, indicating profit booking at higher levels. The bulls tried to push the price back above $95,000 on May 5 but are facing stiff resistance from the bears.  Glassnode senior researcher CryptoVizArt said in a post on X that Bitcoin maintaining above $93,000 was very surprising and also risky as the rally to the $93,000 to $96,000 range “pushed the profit-taking volume above the statistical levels.” CryptoVizArt added that t…

Key Takeaways: 88% of Bitcoin’s supply is in profit below $95,000, indicating a reset in investor expectations. The current price range of $75,000–$95,000 may represent a structural bottom, aligning with market conditions from Q3 2024. The Market Value to Realized Value (MVRV) Ratio at 1.74 acts as a historical support zone, signaling cooling unrealized gains and potential for future growth. Bitcoin’s (BTC) market dynamics are shifting, as Glassnode data reveals that 88% of the supply is currently in profit, with losses concentrated among buyers in the $95,000-$100,000 range. This high profitability, rebounding from a long-term mean of 75%, indicates a reset in investor expectations.  Bitcoin percent supply in profit. Source: X.com Bitcoin's price staged a recovery from its long-term …

Key takeaways: Bitcoin has historically outperformed gold, more recently by sixfold. Gold’s climb toward $5,000 could set the stage for significant Bitcoin gains. Weakening US dollar and rising global liquidity remain key drivers for both assets. Gold’s march toward $5,000 per ounce and beyond has become a big topic among hard-asset bulls, including Yardeni Research’s head Ed Yardeni and billionaire investor John Paulson. But what could happen to the price of Bitcoin (BTC), touted as “digital gold” by many, if the precious metal surges even higher? BTC price jumped 6x last time gold rallied Bitcoin has historically delivered far more substantial gains than gold when their markets rally concurrently. From March 2020 to March 2022, during the Federal Reserve’s ultra-loose monetary …

Opinion by: Tracy Jin, Chief Operating Officer, MEXC Market manipulation is everywhere and yet nowhere to be seen. It is an invisible threat affecting crypto and traditional markets, leaving ordinary traders counting the costs. Sometimes, manipulation is obvious — illiquid tokens being pumped high before being dumped just as fast — but often, it's subtler and more challenging to detect. What's more concerning is that these schemes are no longer the domain of rogue whales or amateur pump groups. Signs increasingly point to highly organized, well-funded networks coordinating activities across centralized exchanges, derivatives platforms, and onchain ecosystems. As these actors grow in sophistication, their threat to market integrity expands exponentially. A tale as old as time  Market manipu…

Ripple, the US-based crypto services firm behind the XRP Ledger, has committed $25 million in Ripple USD (RLUSD) to education nonprofits DonorsChoose and Teach For America. According to a May 5 announcement, the grant will be processed through the crypto charity intermediary service The Giving Block. DonorsChoose CEO Alix Guerrier said "teachers are going the extra mile for their students' education, even spending hundreds — sometimes thousands — of dollars out-of-pocket for their classrooms." The donations are meant to provide teachers with resources for such initiatives. Ripple cites a 2024 Gallup survey showing that 55% of US parents and adults are dissatisfied with the quality of K-12 education in the United States. This highlights “constraints and gaps in funding for education,” the reports reads. Ripple CEO Brad Garlinghouse said in the statement: “We hope to inspire others to do the same, starting with Teacher Appreciation Week, and leading into the rest of the year to support students and teachers with the resources they need to build a stronger future for themselves and their communities.” Teach For America CEO Aneesh Sohoni said the new funding will allow the organization to expand its “Ignite Tutoring Fellows program, drive innovation in our Reinvention Lab, and provide crucial financial assistance” to prepare teachers. Related: The Giving Block starts disaster fund for California wildfire victims Crypto-fueled charity The cryptocurrency industry is familiar with charitable donations. Last month, Binance co-founder Changpeng “CZ” Zhao pledged over half a million dollars worth of crypto to the earthquake disaster relief effort in Thailand and Myanmar. The Giving Block forecasts crypto donations to reach $2.5 billion in 2025. Another player in the crypto charity field, Blockchain For Impact (BFI), in March committed $90 million to advance biomedical research. Magazine: 6 Questions for Alex Wilson of The Giving Block

$243M Bitcoin scam that led to kidnapping and chaos In one of the most bizarre crossovers between digital crime and real-world violence, a group of young cybercriminals stole almost $243 million in Bitcoin (BTC). Within weeks, the fallout spilled from the blockchain into a quiet Connecticut suburb, ending in a harrowing kidnapping plot. If this seems like the plot of a Netflix thriller, you’re not alone in thinking that. But it happened. And fast. Let’s unpack how a Minecraft-playing teenager, an underground network of crypto thieves and a Lamborghini-driving suburban couple all became tangled in a wild web of digital deception and real-world chaos. It all started when a Washington, D.C.-based cryptocurrency investor received a suspicious phone cal…

US President Donald Trump will host a gala dinner for top holders of his Official Trump (TRUMP) memecoin despite bipartisan criticism and renewed calls for impeachment. In a May 5 Truth Social post, Trump announced that he will hold a gala dinner with major TRUMP holders on May 22. The announcement follows multiple US lawmakers expressing concern over the initiative. In late April, Massachusetts Senator Elizabeth Warren called on government officials to address questions related to Trump’s memecoin and his media company. Controversies grew after Trump announced a dinner and White House tour for some holders of his TRUMP memecoin. “President Trump’s announcement promises exclusive access to the presidency in exchange for significant investment in one of the President’s business ventures,” a…

Michael Saylor’s Strategy, one of the world’s largest corporate Bitcoin investors, slowed its BTC purchases last week as the cryptocurrency briefly surged above $97,000. Strategy acquired 1,895 Bitcoin (BTC) for $180.3 million during the week from April 28 to May 4 at an average price of $95,167 per BTC, the firm announced in its latest Form-8 filing with the US Securities and Exchange Commission. Strategy’s latest Bitcoin purchase is one of the smallest made by the company this year, alongside a comparatively meagre 130 BTC purchase in March. Source: Michael Saylor The latest buy is 87% less than the previous purchase of 15,355 BTC announced last Monday. Semler boosts buying despite rising prices While Saylor’s Strategy cooled its Bitcoin buying spree last week, others upped their appetite for BTC. Semler Scientific, a publicly traded US healthtech firm, bought 167 Bitcoin for $16.2 million in the period from April 30 to May 2 at an average purchase price of $97,093 BTC. Announced on May 5, the purchase by Semler was up at least 50% from the previous 111 BTC purchase by the firm announced on April 25. Bitcoin price chart in the past 30 days. Source: CoinGecko As of May 2, Semler held 3,634 BTC, acquired for an aggregate of $322.3 million at an average purchase price of $88,668 per BTC. Semler’s Bitcoin holdings are considerably smaller than Strategy’s, which held 555,450 BTC as of May 4, acquired for $68,550 per BTC. This is a developing story, and further information will be added as it becomes available. Magazine: Crypto wanted to overthrow banks, now it’s becoming them in stablecoin fight

Binance co-founder Changpeng “CZ” Zhao has proposed Bitcoin and BNB as the first digital assets to build Kyrgyzstan’s national crypto reserves. On May 5, Zhao shared on X that he had advised Kyrgyzstan to start with Bitcoin (BTC) and BNB (BNB) when building its national crypto reserve. In 2024, Forbes claimed that Zhao holds about 94 million BNB tokens, or 64% of BNB’s circulating supply. At the time of writing, these tokens are worth about $55 billion.  The proposal followed Zhao’s earlier announcement that he had begun advising Kyrgyzstan’s National Investment Agency (NIA) on blockchain and crypto-related matters. On April 3, Zhao confirmed he’s been officially and unofficially advising governments on crypto frameworks and blockchain solutions. The former Binance CEO said that he finds…

Dubai, UAE – May 2025 — TheBlock, the International Chamber of Virtual Assets, has announced a strategic partnership with Cointelegraph, the world’s leading Web3 media platform. The collaboration brings together two major players in the blockchain and virtual asset space, with the shared goal of amplifying the global adoption of tokenisation, advancing regulatory dialogue, and supporting builders entering the MENA region. The agreement, signed during Token2049 Dubai, highlights Cointelegraph’s growing collaboration with key players in the UAE. This new partnership will foster deeper collaboration and mutual support across TheBlock’s ecosystem. As part of the collaboration, Cointelegraph will set up a presence at TheBlock’s headquarters in Dubai World Trade Center, offering opportunities fo…

Key takeaways: XRP forms a bearish descending triangle on the daily chart, risking a 45% drop to $1.20. Declining daily active addresses signal reduced transaction activity and liquidity. A breakout above $2.18 could invalidate the bearish pattern. The XRP (XRP) price flashes warning signs as a bearish technical pattern emerges on its daily chart, coinciding with declining network activity.  XRP descending triangle hints at 45% price drop The XRP price chart has been forming a descending triangle pattern on its daily chart since its late 2024 rally, characterized by a flat support level and a downward-sloping resistance line. A descending triangle chart pattern that forms after a strong uptrend is seen as a bearish reversal indicator. As a rule, the setup resolves when the price breaks…

Cryptocurrency investment products attracted $2 billion in new inflows last week, according to the European investment firm CoinShares. Global crypto exchange-traded products (ETPs) have added $5.5 billion in inflows in the past three weeks, according to the latest weekly report from CoinShares. With the new inflows, total assets under management (AUM) in all crypto ETPs worldwide jumped 3.3% from $151 billion to $156 billion. Although the positive trend has continued for the past three weeks, the latest weekly inflows were down 41% from last week’s $3.4 billion of inflows — the third-largest crypto ETP inflows on record. Inflows slowed down despite new Bitcoin gains The slowdown in crypto ETP inflows came despite Bitcoin (BTC) seeing some brief gains last week, with the price rising from …

While many crypto ecosystems focus on decentralization as the core tenet of Web3, Aptos is seeing success with hybrid platforms that blend Web2 and Web3 technologies, commonly referred to as “Web2.5.” In an interview at the Token20249 event in Dubai, Aptos’ head of ecosystem, Ash Pampati, told Cointelegraph that they see Web2.5 platforms earn “tons of revenue” within Aptos. He noted that consumer-focused applications in particular are thriving on the network. Web2.5 is a term used to describe a combination of Web2 and Web3 technologies. The term describes platforms or applications that blend centralized Web2 experiences with decentralized Web3 elements.  These applications often avoid full decentralization, drawing criticism for not fully embracing the Web3 vision. Ash Pampati at the Tok…

Key takeaways: Bitcoin failed to break the $98,000 resistance amid increased profit-taking. BTC price needs to close above $95,000 on the daily chart for a push to $100,000. Bitcoin’s (BTC) price failed to break above resistance at $98,000 on May 3. Since April 22, BTC prices have formed daily candle highs between $93,000 and $97,900, but they could not close above $97,440. BTC/USD four-hour chart. Source: Cointelegraph/TradingView Bitcoin price action has been choppy and within a narrow range for the past few days. With elevated profit-taking and a lot of supply in profit, markets could see volatile price swings toward key BTC price levels over the next few days.  Realized profits above “statistical levels” Senior researcher at Glassnode, CryptoVizArt.₿, said that Bitcoin’s rally to th…

Tether AI, the forthcoming artificial intelligence platform from stablecoin giant Tether, will feature payments in major cryptocurrencies, including USDt and Bitcoin. Tether CEO Paolo Adroino took to X on May 5 to tease the imminent launch of Tether AI, the company’s new AI platform designed to offer “personal infinite intelligence.” According to Ardoino, Tether’s AI platform will be integrated with USDt (USDT) and Bitcoin (BTC) payments, allowing users to make transactions directly through a peer-to-peer (P2P) network. Source: Paolo Ardoino The initiative builds on Tether’s December 2024 announcement that it was developing a website for the AI tool, targeting a launch by the end of the first quarter of 2025. Support of “any hardware and device” Ardoino emphasized that Tether AI will not…

Ethereum co-founder Vitalik Buterin has explained when he believes rollup-based layer-2 platforms should go decentralized, and why “as soon as possible” is not the correct answer. In a May 5 X post, Buterin explained that there is a right time for rollup-based scalability solutions to transition to a decentralized model. This moment depends on how low the proof system’s failure probability has fallen compared with the risks introduced by centralization. Buterin’s thread came in response to a separate post by decentralized exchange Loopring founder and CEO Daniel Wang. Wang explained in his thread that the maturity of a system matters to its security: “Not all code is created equal. A rollup can be Stage 2, but running fresh code that’s never been tested under real stress.“ Rollup developme…

Opinion by: Shane Molidor, Founder, Forgd For years, launching a crypto project in the United States has been a maze of uncertainty. Legal ambiguity and a hostile regulatory environment have driven founders offshore, turning places like Switzerland and the Cayman Islands into global hubs for blockchain innovation.  With Trump’s election, things finally started to change, with a US administration openly declaring its intention to be crypto-friendly. Yet, despite the rhetoric, nothing concrete has changed so far. Launching a crypto project in the US is just as difficult as ever. US regulatory agencies continue to offer nothing but vague threats and “regulation by enforcement” lawsuits. America wants to be a leader in crypto, but, even under the Trump administration, it isn’t taking action to…

OpenAI CEO Sam Altman’s digital identity project, World, formerly known as Worldcoin, faces challenges in Indonesia after local regulators temporarily suspended its registration certificates. The Indonesian Ministry of Communications and Digital (Komdigi) has halted the Electronic System Operator Certificate Registration (TDPSE) for World and World ID over suspicious activity and alleged registration violations, the ministry announced on May 4. After the suspension, Komdigi plans to summon World’s local subsidiaries, PT Terang Bulan Abadi and PT Sandina Abadi Nusantara, to provide clarification on the alleged violations, it stated. According to a preliminary investigation, World’s PT Terang Bulan Abadi was allegedly operating without TDPSE, while PT Sandina Abadi Nusantara — the subsidiary…

Notcoin, one of the most prominent Web3 gaming projects of 2024, said the tap-to-earn genre is “probably dead” as Web3 gaming shifts to more fun and engaging projects. During Token2049 in Dubai, Notcoin co-founders Sasha and Vladimir Plotvinov, along with Uliana Salo, the head of design and product lead for NotGames, spoke with Cointelegraph about the state of Telegram-based Web3 gaming.  Vladimir told Cointelegraph that game builders are shifting to different genres as tap-to-earn has failed to sustain players’ interests.  “We’re going to see different types of games, as tap-to-earn games are probably dead because they’re not sustainable,” he said.  Notcoin’s Sasha Plotvinov (left), Uliana Salo (middle) and Vladimir Plotvinov (right) at the Token2049 event in Dubai. Source: Cointelegraph …

What is a digital twin? A digital twin is a virtual model or replica of a physical object, system or process. It’s like a digital mirror, allowing us to simulate, monitor and predict the behavior of real-world entities in real-time.  These virtual counterparts are designed to pull data from physical sensors or inputs, providing a continuous feedback loop that helps with analysis, optimization and decision-making. Digital twins can represent almost anything, from machinery in a manufacturing plant to human behavior or entire cities. In industries like healthcare, automotive, manufacturing and urban planning, digital twins allow for better resource management, predictive maintenance and more accurate simulations before physical changes are made. In e…

Increasing institutional interest and moves toward legal frameworks for stablecoins have seen the space grow, with five major projects slated to expand the market in the near future. In the EU, the Markets in Crypto-Assets (MiCA) regulatory package is in full force and has given stablecoin issuers clear guidelines by which they can enter European markets. In the US, the STABLE Act and the GENIUS Act, which would provide rules for stablecoins, are making their way through Congress.  As a result, major payments firms like Mastercard and Visa are stepping up support for stablecoin systems, and new coins have appeared, boosting the overall market capitalization of the stablecoin market.  Here are five major stablecoin initiatives projected to grow crypto adoption. Tether to relaunch in the U…

Bitcoin (BTC) starts the first full week of May with yearly open support in focus ahead of a key US economic policy decision. BTC price action attempts to hold the yearly open as support after some downside at the weekly close, but bullish perspectives remain intact. The US Federal Reserve interest rate decision is the key macro event of the week, with Chair Jerome Powell tipped to “move markets.” Jobless claims and Coinbase earnings add to a mixed bag of potential volatility triggers as recession talk gets louder. Bitcoin dominance hits 65% for the first time in over four years, but analysis thinks its days are numbered. Bitcoin “FOMO” is still waiting in the wings as sentiment flips positive. Bitcoin traders stay bullish with $93,500 intact Bitcoin saw some sell pressure into the …

US President Donald Trump gave clashing answers to whether he has profited from the crypto memecoin he launched in January, just days before he re-entered the White House. In a wide-ranging interview with Kristen Welker on NBC News’ Meet the Press released on May 4, Trump said he was “not profiting from anything” when asked to respond to critics who said he’s profiting from the presidency through the memecoin. “So you’re not profiting off of the cryptocurrency at all?” Welker asked Trump. “I haven’t even looked,” Trump admitted. “But I’ll tell you what. Look, if I own stock in something and I do a good job, and the stock market goes up, I guess I’m profiting.” Trump launched his memecoin, Official Trump (TRUMP), on Jan. 17, which hit a peak of $73.43 two days later, just a day before he wa…

Crypto exchange OKX has brought its decentralized exchange (DEX) aggregator back online with new security upgrades after it was paused in March to prevent further misuse by the North Korean hacking crew, the Lazarus Group. OKX founder and CEO Star Xu said in a May 4 statement to X that the DEX aggregator, OKX Web3, will resume with several new features, including a “real-time abuse detecting and blocking system.” A DEX aggregator is a service that pulls data from multiple decentralized exchanges and market makers and then presents it to users to assist with trading. Xu says, “OKX Web3 is a browser and search engine for blockchain.” Source: Star Xu At the same time, OKX said in a May 4 statement that the latest upgrade includes other new security measures to identify suspicious or fraudulen…

Early Bitcoin entrepreneur Charlie Shrem says he’s working on bringing back the Bitcoin faucet — a website that hands out Bitcoin to whoever solves CAPTCHA tasks, normally used to distinguish humans from machines. Shrem shared his new Bitcoin (BTC) faucet website — 21million.com — in a May 4 X post, which mimics the first-ever Bitcoin CAPTCHA page created by early Bitcoin innovator Gavin Andresen back in 2010. The 21million.com website currently displays a screenshot of a CAPTCHA task and a box to enter a receiving Bitcoin address, which was not functional at the time of writing.  Shrem’s Bitcoin faucet website also shows that there are 0 Bitcoin available to claim. Like Andresen’s old website, Shrem’s page explains what Bitcoin is and how to receive Bitcoin. Charlie Shrem’s Bitcoin faucet…

The Australian crypto industry has called on the newly reelected Labor government to urgently make digital asset legislation a top priority to ensure Australia doesn’t fall further behind global markets. The incumbent Australian Labor Party was returned in a landslide on May 3, picking up 54.9% of the two-party-preferred vote, against the Liberal and National Parties on 45.1%. Both parties went to the election promising crypto law reform, but only the opposition pledged to deliver draft legislation within 100 days. Joy Lam, Binance’s head of global regulatory and APAC legal, said the exchange has been consulting with Treasury officials since late 2023 about its proposed legislation, and it was now time for action. “Timing is really quite critical now because obviously it's something that …

Spot Bitcoin exchange-traded funds (ETFs) in the United States bought up nearly six times as many Bitcoin as were produced by miners over the last week. The US-based Bitcoin (BTC) funds bought a whopping 18,644 Bitcoin over the past week when only 3,150 BTC were mined for the period, reported asset allocator HODL15Capital on May 4. This accumulation by institutions and ETF issuers represents almost six times the amount of the asset being produced since miners only generate 450 coins per day.   The total inflow for the past five trading days was around $1.8 billion, with a net outflow on April 30, according to Farside Investors. There has only been one outflow day since April 16, as the inflows have mirrored market recovery.  Last week’s accumulation followed an increase in BTC spot prices …

OpenAI says it ignored the concerns of its expert testers when it rolled out an update to its flagship ChatGPT artificial intelligence model that made it excessively agreeable. The company released an update to its GPT‑4o model on April 25 that made it “noticeably more sycophantic,” which it then rolled back three days later due to safety concerns, OpenAI said in a May 2 postmortem blog post. The ChatGPT maker said its new models undergo safety and behavior checks, and its “internal experts spend significant time interacting with each new model before launch,” meant to catch issues missed by other tests. During the latest model’s review process before it went public, OpenAI said that “some expert testers had indicated that the model’s behavior ‘felt’ slightly off” but decided to launch “du…

Malicious actors appear to have infiltrated the New York Post’s X account in an attempt to scam crypto users on the microblogging platform.  Some X users from the crypto community have recently reported having received a private message from the New York Post’s X account inviting them to feature in a podcast and to contact them via Telegram.  The spurious messages were first discovered on May 3 by Kerberus founder and CEO Alex Katz, who shared a screenshot of a message made out to be from author and journalist Paul Sperry via the official nypost account.  “What’s interesting about this case is that the scammer gained unauthorized access but didn’t post a Pump.fun address or wallet drainer. Instead, they’re messaging users and then directing them to Telegram,” observed cybersecurity enginee…

The Solana Foundation has confirmed that a zero-day vulnerability that allowed an attacker to potentially mint certain tokens and even withdraw those tokens from user accounts has been fixed.  A May 3 post-mortem from the Solana Foundation said that the security vulnerability, first discovered on April 16, could have allowed an attacker to forge an invalid proof affecting Solana’s privacy-enabling “Token-22 confidential tokens.” There is no known exploit of the vulnerability, and Solana validators have since adopted the patched version, the foundation said. Solana zero-day security bug affected Token-22 confidential tokens The Solana Foundation said the security vulnerability concerned two programs: Token-2022 and ZK ElGamal Proof. Token-2022 handles the main application logic for token mi…

Toymaking giant Mattel is putting the brakes on its Hot Wheels Virtual Garage non-fungible tokens, pending a decision on the collection’s future. There will be no future releases of any new NFT series or feature drops for the “foreseeable future,” Mattel said in an update on its website. The company said it will decide on the “long-term future” of Mattel digital collectibles. “Your unwavering support and enthusiasm for the Hot Wheels Virtual Garage has been legendary, and we’re incredibly grateful to have been on this journey with you,” the company said. “As we evaluate the changing world of virtual collectibles, we’ve determined the time has come to end our Series and Feature Drops in 2025 and onward.” There are no plans for any new NFT series or feature drops for Mattel's Hot Wheels Virt…

Key points: Bitcoin’s positive sentiment should remain intact if BTC price stays above the 20-day EMA near $92,000. Several altcoins show bullish chart patterns in the 4-hour and 1-day timeframes. Bitcoin (BTC) has given back some of the gains over the weekend, and the price has pulled back to the breakout level of $95,000. Buyers will have to successfully hold the $95,000 level to keep the bullish momentum intact. Bitcoin network economist Timothy Peterson said in a post on X that Bitcoin could surge to a new all-time high and reach a target of $135,000 in the next 100 days if certain conditions are met. Peterson believes a drop in the CBOE Volatility Index below 18 could trigger a “risk-on environment” favoring Bitcoin. The other crucial points needed for the Bitcoin rally are a fall …

The Senate's stablecoin bill's issues may delay work on the far more important market structure legislation.  ( 31 min )

Institutional investors accumulate despite volatility, with 109 new SHIB millionaire wallets emerging in April.  ( 23 min )

Rep. Maxine Waters said she is concerned about U.S. President Donald Trump's increasing crypto ties.  ( 24 min )

The Oracle's crypto skepticism runs deep and successor Greg Abel is unlikely to chart a new course.  ( 24 min )

Before SDNY prosecutors filed charges in the case, FinCEN told them that Samourai Wallet didn’t meet the definition of a money transmitting business.  ( 25 min )

The 'Strategy Model' is good for BTC. But what about the rest of crypto? CoinDesk Indices’ Andy Baehr has questions.  ( 26 min )

As a successor to the so-called FIT21 bill in the last session, the committee chairs in the House have released a discussion draft of a market structure bill.  ( 25 min )

Strategy alone is expected to buy another $124 billion of bitcoin over the next five years, in the broker's bull case.  ( 22 min )

The Karen National Army and its leaders were sanctioned on accusations they perpetuated crimes against U.S. citizens that featured crypto thefts.  ( 24 min )

Issuance capacity among bitcoin-holding companies could translate to tens of billions in market buying power.  ( 23 min )

The upgrade is focused on making the Ethereum blockchain more user-friendly and efficient.  ( 23 min )

Chainlink to Start New Community Rewards Program for LINK Stakers  ( 23 min )

XRP is nearing a 'death cross,' a bearish indicator, as its price falls below the 50-day moving average.  ( 23 min )

Avalanche (AVAX) joined Near Protocol (NEAR) as an underperformer, also falling 7.4%.  ( 20 min )

The Fed is widely expected to leave rates steady on Wednesday, but traders will monitor comments for economic projections and clarity on future rate cuts.  ( 25 min )

The company made its latest purchases for $16.2 million, or an average price of $97,093 per bitcoin.  ( 21 min )

The original faucet distributed 5 BTC per user for free, which is now worth nearly $500,000 per transfer.  ( 23 min )

A combination of sales of common stock and STRK preferred stock funded the latest purchase.  ( 21 min )

Buterin put out thoughts for a long-term roadmap that drastically reduces the complexity of Ethereum’s technology.  ( 24 min )

Your day-ahead look for May 5, 2025  ( 36 min )

Tether CEO Paolo Ardoino Tether AI tech will enable an unstoppable peer-to-peer network of billions of AI agents  ( 21 min )

Ethereum's Pectra upgrade, set for May 7, aims to improve scalability and may impact market activity.  ( 23 min )

The TRUMP token is up 20% over the last month, according to market data  ( 22 min )

A sophisticated attacker could forge invalid proofs that the on-chain verifier would still accept. This would have allowed unauthorized actions such as minting unlimited tokens or withdrawing tokens from other accounts.  ( 24 min )

The stablecoin will be backed by $500 million in gold from the Kyrgyz Ministry of Finance, with plans to expand reserves to $2 billion.  ( 23 min )

The investment aims to help the Maldives diversify its economy beyond tourism and fisheries and address its debt obligations.  ( 23 min )

The market is cautiously optimistic that a deal can be reached and traders are taking a breather.  ( 26 min )

An attractive proposition for commercial enterprises and indie developers looking to build speech recognition and transcription services...  ( 7 min )

Visa launches Intelligent Commerce platform enabling AI assistants to make secure purchases with your credit card, transforming online shopping with personalized automation and consumer-controlled spending limits.  ( 10 min )

Do you want to build a practical project to help improve your C++ skills? Have you ever wanted to create your own unique audio effects? Then diving into C++ audio plugin development with the JUCE framework might be your next great step We just publis...  ( 4 min )

Have you ever found yourself stuck deciding what color outfit to wear? Maybe you’re mixing and matching different tops and bottoms, unsure if the colors go together. It’s a common dilemma – so common that many of us turn to friends or family for a se...  ( 10 min )

Chinese automaker SAIC-GM-Wuling Automobile (SGMW) is set to launch in Malaysia in the very near future. The company will instead debut as “TQ Wuling” locally and will also introduce a budget, locally-assembled (CKD) EV model to the market within the fourth quarter of 2025. The vehicle in question is the Wuling Bingo, which is assembled […] The post TQ Wuling To Debut In Malaysia With Affordable EV, The Wuling Bingo appeared first on Lowyat.NET.  ( 17 min )

Mattel, has recently announced its first-ever brick models under its new Mattel Brick Shop brand. The line-up of these new brick models consists of seven iconic cars that they get to build from scratch via various parts – much like LEGO. It’s worth mentioning that while the brand says that this is done in collaboration […] The post Mattel Launches New “Brick Shop” Brand With Seven Iconic Car Models appeared first on Lowyat.NET.  ( 18 min )

vivo’s iQOO sub-brand has launched the Buds 1i, a pair of TWS earbuds. The device is seemingly available in both China and international markets, although it comes in two different variants. While one of its main selling points is its 50-hour battery life, that particular variation is only sold in Indonesia. The Chinese market gets […] The post iQOO Buds 1i Launches In Indonesia With 50-Hour Battery Life appeared first on Lowyat.NET.  ( 16 min )

Payments Network Malaysia Sdn Bhd (PayNet) has launched the country’s first dedicated fintech accelerator and community platform, the PayNet Fintech Hub, aimed at fast-tracking the development of Malaysia’s fintech sector. The initiative is designed to provide selected fintech startups with capital access, mentorship, industry partnerships, and international exposure. According to the company, the Fintech Hub […] The post PayNet Launches Malaysia’s First Fintech-Focused Accelerator And Community Hub appeared first on Lowyat.NET.  ( 16 min )

In the past few days, you may have gotten strange scam calls noting that “your resume has been approved” on Jobstreet, telling you to contact the caller via WhatsApp. These calls come from various numbers, including apparent landline numbers as well, and these calls would be extra weird if you don’t have an account on […] The post Jobstreet Malaysia: “Resume Approved” Calls Are Scams appeared first on Lowyat.NET.  ( 16 min )

There is a chance that OnePlus might unveil its Nord CE 5 soon. The successor to last year’s Nord CE 4, details of the apparent device were shared by @Gadgetsdata through a post on X. Among the various specs, the leakster claims that the phone will come with a MediaTek Dimensity 8350 chipset, and house […] The post OnePlus Nord CE 5 Specs May Include MediaTek Dimensity 8350 appeared first on Lowyat.NET.  ( 16 min )

vivo has quietly introduced a new entry-level smartphone called the Y19s Pro on its Colombian website. The Pro counterpart to the Y19s, it seems to be nearly identical to the vanilla model except for a smaller battery and an upgraded charging speed. Just like the standard version, the Y19s Pro sports a 6.68-inch 720p LCD […] The post vivo Y19s Pro Quietly Listed; Malaysian Launch Imminent appeared first on Lowyat.NET.  ( 15 min )

Nearly four years after leaving the smartphone business, LG has announced that it is shutting down update servers for its existing smartphones. Users who are still in possession of an LG smartphone are advised to update their devices before 30 June 2025, after which, support services will be terminated. Affected services include LG Electronics Mobile […] The post LG Smartphones To Lose Update Support In June appeared first on Lowyat.NET.  ( 15 min )

US President Donald Trump has stated that he would extend the 19 June deadline for TikTok, should the social media platform’s parent company, ByteDance, still fail to find a buyer for its US business. During an interview with NBC, he said that he would like to “see it done.” TikTok’s fate in the US has […] The post Trump Says He Will Extend TikTok Deadline If Deal Still Not Reached appeared first on Lowyat.NET.  ( 15 min )

The Communications Ministry has expressed “readiness” to meet with representatives from media groups to discuss guidelines on AI use in journalism. Specifically mentioned are the National Union of Journalists Malaysia (NUJM) and the Malaysian Press Institute (MPI), according to Bernama. Comms Minister Fahmi Fadzil was quoted as saying that “I am ready to meet and […] The post Comms Ministry Open To Discuss AI Use Guidelines In Journalism appeared first on Lowyat.NET.  ( 16 min )

Apple is reportedly planning on introducing a significant new element to the iPhone 18 Pro and Pro Max with an under-display Face ID. This is according to a report by The Information, which claims that the tech giant could introduce the technology in the iPhone for the first time along with a new layout. The […] The post iPhone 18 Pro Series To Reportedly Feature Under-Display Face ID appeared first on Lowyat.NET.  ( 16 min )

Electric car automaker, Smart, has recently been gaining popularity among Malaysians with its models like the Smart #3. Yesterday, the company released a social media post about something new that is brewing for the Malaysian market. From the post, it is safe to say that it is a teaser for the Smart #5. There’s also […] The post Smart Teases The #5 EV For Malaysia appeared first on Lowyat.NET.  ( 17 min )

OPPO released its Reno13 phone series in Malaysia earlier this year, following its launch in China last year. Since then, the brand has apparently been working on its successor, the Reno14. Rumours of its alleged camera setup and side profile leaked recently, and now a new report has emerged regarding its suspected chipset. According to […] The post OPPO Reno14 Might Come With MediaTek Dimensity 8400 Chipset appeared first on Lowyat.NET.  ( 16 min )

Maybank has announced that it will be performing a planned system maintenance on this upcoming Saturday, 10 May 2025, as well as the following Saturday, 17 May 2025. During the scheduled maintenance, which the bank conducts periodically to ensure a smooth banking experience, users will be unable to access several online services. For both dates, […] The post Maybank Schedules System Maintenance For 10 And 17 May 2025 appeared first on Lowyat.NET.  ( 15 min )

Back in January, accessory brand Genki showed off what was claimed at the time to be a replica of the Nintendo Switch 2, which wasn’t revealed yet at the time. This got the company the legal ire of the old Japanese games company, which was considering legal action despite the accessory maker saying it hadn’t […] The post Nintendo Sues Accessory Brand Genki For Switch 2 Mockups appeared first on Lowyat.NET.  ( 16 min )

HONOR has officially confirmed that its upcoming HONOR 400 series will be making its global debut soon, with Malaysia being selected as the first market. As previously teased, the lineup will be AI-driven and is being marketed as an “iPhone killer“. The series will be made up of three models with the first model being […] The post HONOR 400 Series To Make Global Debut In Malaysia appeared first on Lowyat.NET.  ( 15 min )

While the national carmaker, Proton, has entered the electric vehicle market, Perodua is yet to launch its EV vehicle. It is a known fact that many Malaysians are eager for the launch of eMO (Perodua’s first electric vehicle). Well, it seems like the wait is not much longer as a recent Facebook posting in the […] The post Perodua EMO-II Spotted Undergoing Testing Ahead of Anticipated Launch appeared first on Lowyat.NET.  ( 17 min )

A US court has set a date for its court battle against Google. The Department of Justice (DOJ) will hear the search engine’s case on 22 September and decide whether or not to end its advertising technology dominance. As a quick primer, the DOJ is seeking a court order to force Google to divest key […] The post US DOJ To Determine Fate Of Google’s Ad Business This September appeared first on Lowyat.NET.  ( 16 min )

The Ministry of Health (MOH) has announced that it is implementing AI-powered lung screenings for targeted groups at seven health clinics across the nation. The launch of the lung health screenings is part of the key efforts in the ministry’s National Lung Health Initiative 2025-2030 to reinforce prevention, screening, and treatment for lung diseases. According […] The post MOH Introduces AI-Powered Lung Screenings appeared first on Lowyat.NET.  ( 16 min )

The Science, Technology and Innovation Ministry (MOSTI), via its minister Chang Lih Kang, has confirmed that there are currently no plans to introduce specific legislation to regulate the misuse of artificial intelligence (AI). Instead, the government will continue to rely on the National Guidelines on Artificial Intelligence Governance and Ethics (AIGE) as the primary reference […] The post MOSTI: No Plans For AI Law In Malaysia Yet appeared first on Lowyat.NET.  ( 15 min )

The Middle Eastern country of Kuwait has declared cryptocurrency mining as an “illegal and unlicensed” activity. The decision is part of a broader crackdown, as it tackles a growing energy crisis. Kuwait’s action are in stark contrast to its neighbour, which has embraced both cryptocurrencies and the accompanying act of mining. The ban is also […] The post Kuwait Bans Cryptocurrency Mining As Part Of Power Crisis Crackdown appeared first on Lowyat.NET.  ( 15 min )

Apple may be preparing a significant change to its iPhone release strategy starting in 2026, according to The Information. Instead of unveiling all new models simultaneously in the fourth quarter, the company is said to be moving towards a split release cycle that will see the Pro and base models arriving separately during spring and […] The post Apple Reportedly Plans To Split iPhone Launches Into Two-Yearly Phases Starting 2026 appeared first on Lowyat.NET.  ( 16 min )

Bryan Johnson is on a mission to not die. The 47-year-old multimillionaire has already applied his slogan “Don’t Die” to events, merchandise, and a Netflix documentary. Now he’s founding a Don’t Die religion. Johnson, who famously spends millions of dollars on scans, tests, supplements, and a lifestyle routine designed to slow or reverse the aging…  ( 23 min )

Krenovator Technology Sdn. Bhd., a Malaysia-based artificial intelligence (AI)-powered tech talent platform, announced Monday that it has secured seed funding from Ignite Asia, a venture capital and private equity principals firm in Singapore and Malaysia.  ( 6 min )

Introduction Let’s be honest — most software engineering interviews suck. They’re filled with algorithmic trivia, abstract whiteboarding, and awkward “culture fit” questions that have nothing to do with the actual job. The result? Interviews that waste time for everyone and still fail to identify great engineers. This blog is for both interviewers and interviewees — whether you’re designing a hiring process or preparing for one. The goal is to make interviews practical, time-efficient, and focused on what truly matters: real-world engineering skills. What follows is a no-nonsense framework based on real projects, meaningful collaboration, and practical coding. It respects your time, cuts the fluff, and gives you real signal — fast. What to do: Ask the candidate to walk through a persona…  ( 5 min )

_Spoiler: Only one of them involves actual effort Between burnout, client work, and staring blankly at VS Code for hours — keeping your GitHub streak alive can feel like a second unpaid job. I used to obsess over my GitHub activity like it was a Tamagotchi that needed daily care. Miss a day? Anxiety. Miss two? Shame spiral. But after years of freelance chaos and working in private repos no one can see, I realized something: I was doing real work... and still looking inactive. That green grid didn’t reflect my grind. So here are 3 ways I’ve learned to keep my GitHub looking alive — without coding every single day like a productivity martyr. One of the most common mistakes devs make is trying to force daily pushes just to fill the grid. Instead: Work in blocks. Real coding happens in spri…  ( 4 min )

At one of my previous jobs, me and my ex-colleague created a small helper package with the most frequently used functions that were used in almost every project. I continue to develop it, as many of the functions are still relevant. Introducing Vanicom.js: A Minimalist JavaScript Helper Library Noname from the internet ・ Mar 6 #webdev #javascript #beginners  ( 3 min )

Originally posted on May 2, 2025 After a major setback wiped our codebase, we rebuilt Tavrn's 1-to-1 DM system from scratch — in just 3 days. This post breaks down how we did it, what’s new, and why it’s already better than before. After losing our original codebase, we had two choices: Start over slowly and mourn the loss... Or hit the ground running and build something better. We chose the second one. It only took 3 days — but our 1-to-1 messaging system is back. Fully rebuilt from the ground up. Clean. Fast. Future-proof. And, honestly? It’s better than what we had before. We redesigned how messages move, how conversations flow, and how it all scales. What used to feel basic now feels tight — like something you’ll actually want to use every day. Here’s a little peek at what’s already working in our new DM system: 🔒 Fast messaging with improved delivery speeds 🌙 Sleeker UI built with clarity and vibe in mind 🗂️ Better message rendering 💬 Typing indicators and presence detection, redone the right way ⚡️ A system that can grow without getting messy And we’re just getting started. Now that DMs are locked in, we’re moving on to polish other core features — including group chats, profiles, and real-time updates. Every step is built with community, performance, and personality in mind. No bloat. No noise. Just smooth, satisfying conversation. Setbacks happen. But we’re proud of how we responded: By building. By improving. By actually shipping something better. If you’ve been waiting on Tavrn — thank you. The foundation is back. And the future’s right behind it. — Tavrn  ( 3 min )

Shopping—a timeless ritual familiar to us all—is quietly undergoing a profound transformation. Gone are the days when shopping was nothing more than exchanging goods for currency. Today, beneath the familiar surface of the high street and online storefronts, an intricate interplay of data-driven intelligence and personalised precision shapes the retail landscape. At the epicentre of this quiet upheaval is Artificial Intelligence (AI). Not a futuristic novelty from distant sci-fi narratives, but a living, evolving presence within retail operations worldwide. By 2025, AI’s role in retail is forecasted to be valued at an astounding £54.92 billion. A recent Gartner report underscores its importance starkly: 91% of retail IT leaders now regard AI as a core strategic priority. AI, it seems, has …  ( 6 min )

I have been in team meetings where, they were basically, "free-form discussions." We'd start with good intentions, but two hours later, no real decisions have been made. It was frustrating, and the team's energy was draining with each meeting. The problem? We needed structure, not just good intentions. So, we started implementing detailed agendas for every meeting. At first, it felt a bit rigid, but then with time, our two-hour meetings actually ended in 45 minutes or less. People came prepared. Decisions were made faster. But here's the thing - it's not just about having an agenda. It's about crafting one that guides the conversation without stifling creativity. We found a balance between structure and flexibility with Rally. This experience played a huge role in why you can build agendas from your Jira board with Rally. How do you structure your team meetings? Have you found any agenda hacks that work particularly well? (👀🟣) I'd love to hear your thoughts.  ( 3 min )

Hey folks! If you’re like me, you probably keep hearing about how AI is changing everything and how there are all these ways to make some money on the side using it. But most articles are either too high-level or super vague. So I thought I’d share a real, working example you can try out right now, with code you can copy, tweak, and make your own. Let’s build a small tool that uses AI to help people write blog posts faster. You can use it for yourself, or offer it as a service to others (think freelance gigs, or even a small SaaS). A command-line Python app that: Takes a blog topic from the user Uses OpenAI to generate an outline and a draft Saves the draft to a file You can run this on your laptop, or turn it into a web app later. The main thing is: it works, and it’s a great starting po…  ( 5 min )

Today's Question: Solution Create an input field Add a button The button should have a function that: adds the content of the input to a list below Resets the input field after adding an item Checks if the item being added has been added previously. It is important to note that this question was obtained from an online test platform which provided a boilerplate code. So I had this to start with: import { useState } from "react"; import "h8k-components"; import "./App.css"; function App() { const [items, setItems] = useState([]); const [input, setInput] = useState(""); const handleAddItem = () => { // TODO: Add logic to add input to items list }; return ( Item …  ( 4 min )

As someone who jumped from Windows to Linux, I've found that your choice of operating system can definitely impact your coding life - but it's not make-or-break. Linux gives me a better command line, simpler software installation, and runs lighter on my hardware. I especially love how it matches most production servers, making deployment way less headache-inducing. That said, Windows isn't the villain some developers make it out to be. It plays nicer with commercial software, gaming tools, and corporate systems. Windows users now have a solid option with WSL (Windows Subsystem for Linux), letting you run Linux tools right inside Windows - giving you the best of both worlds without the commitment of switching entirely. Ultimately, great developers build amazing stuff on all systems. Your OS is just one piece of your toolkit, not the defining factor of your skills. My switch to Linux boosted my workflow for web and backend projects, but I know plenty of rockstar devs crushing it on Windows and Mac. What's your setup? Has switching operating systems ever changed your coding game? Share your story! DevLife #TechChoices #CodingSetup  ( 3 min )

Building AI Pipelines Like Lego Blocks: LCEL with RAG The Coffee Machine Analogy Imagine assembling a high-tech coffee machine: Water Tank → Your data (documents, APIs, databases). Filter → The retriever (fetches relevant chunks). Boiler → The LLM (generates answers). Cup → Your polished response. LangChain Expression Language (LCEL) is the instruction manual that snaps these pieces together seamlessly. No duct tape or spaghetti code—just clean, modular pipelines. LCEL lets you build production-ready RAG systems with: Retriever → Searches your vector DB (like a librarian). Prompt Template → Formats the question + context for the LLM. LLM → Generates the answer (e.g., GPT-4, Claude). Output Parser → Cleans up responses (e.g., extracts text, JSON). Turn your vector DB into a sea…  ( 4 min )

In Kotlin, it’s common to encounter various types of comparison errors, especially when dealing with Java classes due to interoperability issues. The issue you're experiencing occurs when trying to compare an instance of the ExitStatus class from Spring Batch using the ==</code operator. Understanding the Comparison in Kotlin Kotlin has a distinct approach to equality compared to Java. In Kotlin, the == operator is actually syntactic sugar for the equals() method. Thus, when you write if (jobExecution.exitStatus == ExitStatus.COMPLETED), Kotlin attempts to call equals() on the jobExecution.exitStatus. However, if Kotlin does not recognize ExitStatus as having a valid equals method that matches the expected types, you will receive the compilation error: No method 'equals(Any?): Boolean' av…  ( 4 min )

I started working on SafePlate AI because I wanted to help a loved one who was struggling with food allergies, hoping to make their daily life a little easier. Managing food allergies and dietary restrictions can be frustrating and time-consuming, especially when you want to make sure every meal is safe and fits your nutrition goals. I realized there wasn’t a simple tool that could help me quickly identify safe foods and suggest meals tailored to my needs. So, as a good developer, I decided to build one myself. In this post, I want to share on of the feature that I added to the product: how to programmatically post to Facebook after a recipe is created. The project is built using Google Cloud Platform, Ionic (Angular), NestJS and Vertex AI. Here is the flow where all the magic happens: Le…  ( 5 min )

Table of Contents Introduction Why Traditional Permissions Fall Short What Are ACLs and When to Use Them Basic ACL Commands: getfacl and setfacl Real-World Examples Removing and Managing ACLs Best Practices Summary In Linux, we usually use chmod and chown to manage file permissions. That works well when you just need to give access to one user and one group. But what if you need to give access to multiple users or different groups on the same file? That's where ACLs (Access Control Lists) come in. They allow you to control file access in a much more detailed way. Standard permissions only allow: One owner (user) One group Let’s say you want to: Give read-only access to one user Allow full access to another user And block a group from accessing the file You can’t do this wi…  ( 4 min )

Introduction If you've found yourself wondering why the AWS CLI ignores --include options when you run a complex command through a Bash script, you're not alone. Many users experience unexpected behavior when executing AWS S3 commands, especially when utilizing recursive downloads along with --exclude and --include flags. Understanding how these flags work together in the context of Bash scripts can be crucial for achieving the desired results without unnecessary downloads. Understanding the Issue The primary cause of the problem you're encountering is how the Bash script is interpreting the command instructions. When we involve special characters, spacing, and quotes in Bash, it’s easy for commands to be parsed incorrectly compared to when they’re executed directly in the terminal. The AW…  ( 4 min )

Introduction Thanks to Tools4AI and the A2A Java package, you can now easily add AI capabilities directly into your existing Java applications—no Python, no microservice sprawl, and no architectural overhauls. Why Native Java + AI Integration Matters ✅ No dependency on Python environments 🔐 Security & Compliance ⚙️ Seamless CI/CD 🚀 High-speed inference Fastest Way to Create AI Agents in Java @Agent public class SimpleAction { @Action(description = "what is the food preference of this person") public String whatFoodDoesThisPersonLike(String name) { if ("vishal".equalsIgnoreCase(name)) return "Paneer Butter Masala"; else if ("vinod".equalsIgnoreCase(name)) return "Aloo Kofta"; else return "Something yummy"; } } Break…  ( 5 min )

1. Overview Qwen 3, the latest iteration of Alibaba Cloud's Qwen series, is a state-of-the-art large language model (LLM) designed for advanced natural language processing (NLP) tasks, including text generation, code completion, and multi-modal reasoning. Its hardware requirements depend on the specific use case (training vs. inference), model size (e.g., parameter count), and deployment environment (cloud vs. on-premise). This report outlines the necessary hardware specifications for various scenarios. Parameter Count: Qwen 3 is expected to scale from 7 billion (7B) to 100+ billion (100B+) parameters, with potential variants like Qwen 3-7B, Qwen 3-72B, and Qwen 3-100B. Larger models require more memory and computational power. Quantization Support: Some variants may support 8-bit or…  ( 5 min )

As a developer, you're likely no stranger to Git, the powerful version control system that helps you manage changes to your codebase. However, for those just starting out or looking to solidify their understanding, two fundamental commands can often cause confusion: git init and git clone. In this post, we'll dive into the differences between these commands, when to use each, and how they fit into your overall Git workflow. git init: Starting a New Project from Scratch When you're beginning a new project and want to put it under version control, git init is the command you'll use. This command creates a new Git repository in your project directory, initializing it with a hidden .git folder that tracks changes to your code. Here's a step-by-step breakdown of what happens when you run git in…  ( 4 min )

Financial crimes are a persistent threat to financial institutions. Financial institutions have to build intelligent Risk management systems leveraging AI/ML which can defect and present malicious activities. Ability of computing power with the evolution of cloud computing has enabled leveraging machine learning(ML) for Risk management functions like anti money laundering. Data is the foundation of any machine learning project. One of key consideration is availability of high quality data as data quality plays a vital role in identifying and mitigating financial crimes. Why data quality is important => What are possible data quality challenges :- Lack of data standardization across enterprise => Accuracy and completeness => Machine learning models may need data from past years which mi…  ( 4 min )

In Scala, using type members and type classes can lead to complex code, particularly when dealing with self-referential types. This article guides you through calling the getFor method from a SAM trait called DiscriminatorCriteria, utilizing Scala's powerful type system and quoted expressions. Understanding DiscriminatorCriteria Trait The DiscriminatorCriteria trait defines a method getFor that takes a type parameter <V <: A. Here's the trait's signature: trait DiscriminatorCriteria[A] { def getFor[V <: A]: Int } The Issue at Hand When working with mirrors and type reflections in Scala, particularly in macros or complex type derivation, it is common to encounter type mismatches. In your case, the issue arises when specifying headType as a type argument for the getFor method. This happ…  ( 4 min )

✅ Reviewed PR The most subtle bugs aren't in the code you write - they're in the code you approve without enough context. This is a short story about a seemingly harmless line in a PR that I reviewed - and how it taught me to slow down, even with small changes. The line of code below, if(!user.isVerified) return; intention behind this was good not to allow unverified users to proceed into the app. But this return statement wasn't part of larger flow. It was inside a route guard - and it exited silently, without a redirect, message or error. User who signed up with Google or Github (OAuth) were marked isVerified=false This line caused the app to fail to load the protected dashboard, but displayed no error The app just failed silently with blank screen to user. A fallback route with clear message was added and tested both social and email/password flows going forward. if(!user.isVerified) { this.route.navigate(['/verify-email']); return; } 🧠 Real world dev lesson from more than a decade of experience 💬 I'd love to hear your most unexpected regrets too  ( 3 min )

What This Blog Is About In this second blog, I want to look back on my work journeyfrom my early days as a mechanical engineer to where I am now in cybersecurity. Ill walk you through the timeline of my roles, highlight the key skills and decisions that shaped my path, and share what I would do differently if I were just starting my transition today. My hope is that anyone looking to shift into tech or cybersecurity can take something useful from this. Left: Just before kicking off a client project as an Identity & Access Management Engineeroutside their building in Sydney. Right: Unwinding after workon a boat to Manly Beach in my One Piece costume, with the Sydney Opera House quietly in the background. As you look at the diagram below, youll see a visual representation of the key milest…  ( 6 min )

When developing web pages that feature interactive elements, such as image galleries or portfolios, developers often implement lightbox functionality to enhance user experience. However, if you want to disable the lightbox feature for a specific image or set of images, you need to follow certain steps to ensure that the intended behavior is achieved. This articles aims to explain why your images might still exhibit lightbox behavior even after removing the tag and how you can effectively disable it using best practices in HTML, CSS, and JavaScript. Understanding Lightbox Functionality A lightbox is a script that allows images and other media to be displayed in an overlay on the current page. It’s typically invoked by wrapping your images in anchor () tags, which are then linked to t…  ( 4 min )

Many AI Agents use Large Language Models (LLMs) for language. But agents often do more: Planning: They figure out how to do things step by step. Memory: They remember what they've done. Tool Use: They use other programs and tools. Interaction: Some can see and act in the real world. So, while LLMs are a key part, calling an AI Agent just an LLM wrapper misses the other important pieces that make them work.  ( 3 min )

Fighting mental fatigue... Do you ever feel overwhelmed by tech newsletters? As a fullstack developer, you need to stay up to date across multiple areas — frontend, backend, databases, infrastructure, and more. Personally, I’m subscribed to at least 15 newsletters, and I love them all — spoiler alert: I list most of them at the end of the article. But if I miss a day or two, my “DEV” folder starts overflowing. I often spend hours on the weekend catching up — reading inspiring articles, testing snippets, and discovering new tools. It’s one of the best ways to grow and stay sharp. But let’s be honest — keeping up with everything is exhausting. So last weekend, I gave myself a challenge: build a system to manage the overflow using as little code as possible, combining AI and automation. I’m…  ( 9 min )

Hey there, fellow developer! 👋 Let’s talk about a nightmare we’ve all had: You’re deploying code to AWS, fingers crossed, praying it doesn’t take down your entire app. The loading spinner mocks you. Your Slack DMs blow up: “Is the site down??” But what if you could deploy updates with zero downtime while sipping coffee? Enter GitHub Actions + AWS—the dynamic duo that’ll turn you into the calmest dev in the room. Why GitHub Actions + AWS? No More “It Works on My Machine”: Deploy from a clean, consistent environment every time. Zero Downtime: Blue/green deployments, Lambda aliases, and S3 magic keep your site alive. Free (Mostly): GitHub Actions gives you 2000 free minutes/month. Let’s automate your AWS deploys like a pro. 1. Deploy a Static Site to S3 (And Invalidate Clou…  ( 5 min )

Создать веб-приложение, которое решает конкретную задачу — это уже достижение. Но что происходит, когда ваше приложение становится популярным? Когда количество пользователей растет экспоненциально, объем данных увеличивается, а требования к функциональности усложняются? Именно здесь на первый план выходит масштабируемость — способность системы эффективно справляться с растущей нагрузкой. PERN-стек (PostgreSQL, Express.js, React, Node.js) предоставляет мощный набор инструментов для создания современных веб-приложений. Но сам по себе стек не гарантирует масштабируемости. Ключ кроется в архитектуре — в том, как вы структурируете ваш код, проектируете базу данных и организуете взаимодействие компонентов. Меня зовут Богдан Новотарский (bogdan-novotarskiy.com), я Fullstack разработчик, специализ…  ( 9 min )

Ever dreamed of launching your own automated trading bot that reacts to live market moves in milliseconds—without getting stuck on unreliable data or messy setup? 👀 This is exactly what developers are doing today with real-time stock, forex, and crypto APIs. In this quick post, I’ll show you how to get your first trading bot prototype running in just 30 minutes. Perfect for anyone who wants to test ideas fast and see real data in action. ✅ Step 1: Get Your API Key Head over to Finage and sign up for an account. You’ll receive your API key in just a few minutes—no long forms, no fuss. ✅ Step 2: Connect to the WebSocket We’ll use Python and the websocket library to connect to real-time US stock data. Here’s a simple example: import websocket import json SOCKET_URL = "wss://abcd1234.finage.…  ( 4 min )

In the fast-paced world of software development, Quality Assurance (QA) Testers are the unsung heroes ensuring that what we build actually works — and works well. They test end to end to ensure the products meet its requirement and specification. They look for loopholes, and prevent bugs in production. Here’s why QA is essential: ✅ Bug Prevention, Not Just Detection: QA testers help catch issues early, saving time and resources before bugs make it to production. ✅ Improved User Experience: They think like end users, helping to ensure a smooth, intuitive experience. ✅ Boosts Developer Efficiency: Engineers can focus on building, knowing QA has their back on quality. ✅ Confidence to Ship: With QA sign-off, teams can deploy with peace of mind. ✅ Maintains Brand Reputation: High-quality, reliable software keeps users happy and loyal. A great QA Tester doesn’t just test — they collaborate, communicate, and elevate the whole team. Let’s stop thinking of QA as the last step, and instead, an integral part of the process from Day One. 💡  ( 3 min )

Com o crescimento das ferramentas de inteligência artificial (IA) como ChatGPT, Gemini e DeepSeek, muitos usuários buscam maneiras de otimizar suas interações para obter respostas mais precisas e relevantes. Uma estratégia eficaz é organizar as conversas por temas ou especialidades. Essa abordagem não apenas mantém o contexto claro, mas também reduz erros e mal-entendidos. 🎯 Por que Organizar as Conversas por Tema? Manutenção do Contexto: Ao separar as conversas por tópicos específicos, a IA pode entender melhor o assunto em questão, proporcionando respostas mais alinhadas às suas necessidades. Histórico Claro: Ter conversas distintas para cada tema facilita a revisão de informações anteriores, permitindo que você retome discussões passadas sem confusão. Redução de Erros: Misturar assuntos em uma única conversa pode levar a respostas imprecisas. Ao manter tópicos separados, você minimiza esse risco. 🛠️ Dicas para Organizar Suas Conversas Crie Títulos Específicos: Nomeie cada conversa com um título que reflita claramente o tema abordado, como “Dicas de UX/UI” ou “Aprendizado de Python”. Utilize Etiquetas ou Pastas: Se a plataforma permitir, categorize suas conversas em pastas ou com etiquetas para facilitar o acesso futuro. Inicie com um Contexto Claro: Ao começar uma nova conversa, forneça informações detalhadas sobre o que você espera da IA, incluindo objetivos e restrições. 📈 Benefícios a Longo Prazo Adotar essa abordagem estruturada não apenas melhora a qualidade das respostas, mas também transforma a IA em uma ferramenta mais eficaz para aprendizado e trabalho. Com conversas bem organizadas, você economiza tempo, evita retrabalho e maximiza o potencial das ferramentas de IA. Organizar suas interações com inteligências artificiais por temas ou especialidades é uma prática simples, mas poderosa. Ao implementar essa estratégia, você garante conversas mais produtivas, claras e eficientes, aproveitando ao máximo o que essas ferramentas têm a oferecer.  ( 4 min )

📌 Introduction Understanding medical lab reports can be difficult for individuals without a medical background. Terms like "Hemoglobin: 9.8 g/dL" or "WBC Count: 14,500 /µL" can be confusing, leading to unnecessary anxiety or misinterpretation. MedAi Pro aims to bridge this gap by helping users understand medical reports in simple, easily understandable language. 💡 What is MedAi Pro? MedAi Pro is an AI-powered assistant designed to help users comprehend their medical lab reports. By uploading a PDF of the report, users can ask questions in plain English and get clear, concise answers in both text and audio formats. Camel AI has been integrated into MedAi Pro to intelligently handle queries and efficiently process complex medical data. Camel AI's core role is to manage role-based agent pro…  ( 5 min )

A post by afshin Jian  ( 2 min )

This is a submission for the Permit.io Authorization Challenge: Permissions Redefined MedRecord is a modern, privacy-first medical records management system that empowers doctors and patients with secure access to health data while giving administrators full oversight. We tackled the problem of data access control in healthcare — ensuring that only authorised users can read, update, or manage sensitive medical records. With Permit.io, we implemented Attribute-Based Access Control (ABAC) and Role-Based Access Control (RBAC), allowing Admins to manage the entire system Doctors can view all records but update only their assigned patients Patients to view only their personal records By decoupling permissions logic from our codebase, we built a scalable and maintainable system that’s easy to au…  ( 5 min )

This is a submission for the Permit.io Authorization Challenge: Permissions Redefined I built MedSecure, a comprehensive healthcare management system that demonstrates sophisticated authorization using Permit.io. The project showcases both role-based access control (RBAC) and attribute-based access control (ABAC) in a healthcare context. What's exciting is how I created this entire authorization framework using Permit.io CLI's AI capabilities - I simply provided the requirements prompt, and the basic building blocks were generated automatically! This dramatically simplified the implementation of complex permission models that healthcare systems require. MedSecure implements fine-grained access control for different healthcare roles: Admins with full system access Doctors who can manage pat…  ( 5 min )

As we venture into 2025, PHP continues to be a foundational technology for web development. A common point of confusion among new developers is the difference between the echo and print statements in PHP. Understanding these differences is essential for optimizing your PHP code for performance and readability. echo vs print: An Overview Both echo and print are language constructs in PHP that are used to output data to the screen. While they may seem interchangeable, there are subtle differences: Syntax and Efficiency: echo can accept multiple parameters, whereas print can only take one argument. echo is slightly faster as it doesn’t return any value, allowing for better performance in large-scale applications. Return Values: echo does not return any value. print, on the other hand, alw…  ( 4 min )

Introduction In the realm of AI chatbots, ensuring that user interactions yield relevant product recommendations can significantly enhance user experience. If you've been experimenting with LangGraph and faced challenges in getting your chat history utilized along with product recommendations, you're not alone. Many developers struggle with correctly invoking and managing state within their chatbots. In this article, we will explore a Python code example that aims to create a flow for product recommendations based on user queries, and we will discuss the necessary steps to ensure that your chat_history and product_rec_prompt nodes work as intended. Understanding the Problem The primary concern you indicated is that your LangGraph agent is operational, yet the chat_history and product_rec_p…  ( 4 min )

🧠 What if debugging AI reasoning was as simple as watching it think? Today I’m shipping the biggest upgrade yet to OrKa, my open agentic orchestration framework: Modular. Explainable. Runnable anywhere. https://orkacore.com 🧪 Docs + install: pip install orka-reasoning I’m building toward OrKa 0.5.0 with memory agents, RAG nodes, and scoped embedding. Follow if you’re serious about traceable LLM reasoning. No black boxes.  ( 3 min )

This is a submission for the Permit.io Authorization Challenge: Permissions Redefined I built a web application called "Class Guard" that allows educational facilitators to manage tasks and projects assigned to teachers and students. The application supports multiple user roles, including admin, teacher, and student, each with distinct levels of access and permissions. The core problem this application solves is the need for fine-grained authorization to ensure that users can only access and modify the data they are authorized to handle. Vist the Class Guard on Github Having seen this challenge just on May 2nd, I was initially very distressed and considered abandoning it. However, I was inspired when I discovered that a fellow African had just won the WeCoded challenge. This motivated me …  ( 5 min )

⚠️ The Problem: AI Workflows Are Broken Let’s be honest. Most AI projects right now are duct-taped chains of: Prompt injections Tool wrappers Hidden state Zero traceability And god help you if something breaks. You run your LLM call and hope it works. No visibility. No logic. No composability. It's brittle. It’s opaque. And it's slowing real progress. I didn’t want to “wrap” LLMs. I wanted to compose cognition. That means: ✅ Declarative logic (YAML, not code spaghetti) ✅ Modular agent types (search, classify, validate, build, etc.) ✅ Dynamic flow control (forks, joins, routers) ✅ Real-time introspection (Redis/Kafka logs) ✅ Reusable, testable reasoning blocks ✅ Full execution replay So I built OrKa: A composable orchestration framework for LLM-powered agents, built on YAML, Redis, an…  ( 4 min )

In the ever-evolving world of web development, PHP continues to be a cornerstone language thanks to its robustness and versatility. As of 2025, PHP has seen significant enhancements and additions that developers need to acquaint themselves with to leverage these functions effectively. In this article, we’ll dive into the most common PHP functions in 2025, ensuring your backend processes are efficient and cutting-edge. PHP offers a plethora of built-in functions that simplify various programming tasks. Here, we will cover some of the most frequently used PHP functions in 2025, which are key to modern web development. array_map() The array_map() function remains a classic favorite among developers for its ability to apply a callback to the elements of the given arrays. This function is hig…  ( 4 min )

LLMs are great at creative writing and language tasks, but they often stumble on basic knowledge retrieval and math. Popular tests like counting r's in "strawberry" or doing simple arithmetic often trip them up. This is where tools come into the picture. Simply put, we're giving LLMs capabilities they don't naturally have, helping them deliver better answers. I ran some tests with local models on Ollama and noticed some interesting patterns: I tested various models with this straightforward financial question: "I have initially 100 USD in an account that gives 3.42% interest/year for the first 2 years then switches to a 3% interest/year. How much will I have after 5 years?" The correct answer is 100 * 1.0342^2 * 1.03^3 = 116.8747624. What surprised me was that top models like Gemini 2.5 Pr…  ( 5 min )

Web Bluetooth API for Device Communication: A Comprehensive Guide In the rapidly evolving landscape of web technologies, the Web Bluetooth API stands out as a powerful tool that facilitates communication between web applications and Bluetooth Low Energy (BLE) devices. This guide aims to provide an exhaustive exploration of the Web Bluetooth API, including its historical context, technical intricacies, advanced use cases, performance considerations, and practical insights for seasoned developers. The Web Bluetooth API emerged from the increasing need for web applications to interact with a multitude of IoT devices, including fitness trackers, wireless sensors, and smart home gadgets. Before the advent of this API, integrating Bluetooth functionality into web applications involved a cumber…  ( 6 min )

Создание информационного сайта на WordPress – это отличный способ поделиться знаниями, привлечь аудиторию и даже монетизировать контент. Однако успех проекта во многом зависит от продуманного дизайна, который должен быть удобным, современным и соответствующим тематике. В этой статье мы разберём пошаговый процесс разработки дизайна информационного сайта на WordPress своими руками: от выбора темы до настройки визуальных элементов. Прежде чем приступать к разработке, важно определить основные цели и задачи проекта: Тематика сайта (новости, блог, справочник, образовательный ресурс) Целевая аудитория (возраст, интересы, поведение пользователей) Структура контента (категории, рубрики, типы материалов) Для начала работы необходимо: Зарегистрировать доменное имя (желательно короткое и запоминающее…  ( 4 min )

In today's rapidly evolving tech landscape, AI offers unprecedented opportunities for developers to create additional income streams without abandoning their primary careers. As a senior developer immersed in AI technologies, I've witnessed firsthand how fellow developers are leveraging these tools to build lucrative side hustles. The AI market is experiencing explosive growth, with recent studies showing that 87% of executives report skills gaps in their workforce-particularly in AI expertise. This talent shortage has created a perfect environment for developers to monetize their AI skills, with many earning anywhere from $1,000 to $10,000 monthly through various side projects. Something like that. As of May 2025, several key trends dominate the AI side hustle space: The most accessible …  ( 9 min )

Introduction In programming, passing parameters to functions is crucial for manipulating data effectively. Java, unlike some languages such as C#, does not support reference parameters in the same way. Instead, Java uses pass-by-value semantics, which means that when you pass a variable to a method, a copy of that variable is sent. However, there are ways to achieve similar functionality using mutable objects or wrapper classes. In this article, we'll explore how to simulate reference-like behavior in Java using simple examples and provide a clear understanding of handling output parameters in functions. Understanding Reference Parameters in Java When you define a method parameter in Java, it typically receives a copy of the variable's value. If you want to modify the value of an object re…  ( 5 min )

Este post foi escrito em colaboração com Eunice De Borba Correia 1 INTRODUÇÃO Hoje em dia, com quase tudo conectado à internet, a segurança dos sistemas de software virou uma grande preocupação. Ataques e acessos indevidos podem acontecer a qualquer momento, e por isso é tão importante que os sistemas já sejam pensados para se proteger desde o começo. Quando se fala em segurança, fala-se da proteção dos dados e do bom funcionamento do sistema em geral, mesmo diante de possíveis ameaças. Isso é ainda mais importante em áreas como os sistemas do governo, ecommerce ou qualquer serviço que lida com informações sensíveis e confidenciais. Ou seja, desenvolver sistemas usando técnicas seguras é algo essencial para garantir confiança e evitar prejuízos em todos os aspectos. 2 FUNDAMENTAÇÃO TEÓRICA…  ( 5 min )

Haskell is a robust, statically-typed, purely functional programming language with strong theoretical underpinnings. Known for its lazy evaluation and advanced type system, Haskell is often the language of choice for developers interested in functional programming paradigms. But what are the practical applications of Haskell in the modern software landscape? Let's delve into where Haskell truly shines. Haskell's origins in academia make it a popular choice for research in programming languages and functional programming. Its powerful type system, including features like type inference and algebraic data types, allows researchers to rapidly prototype complex algorithms while ensuring code correctness. The financial industry relies heavily on mathematical precision and performance. Haskell's…  ( 4 min )

Introduction Setting up a simple video stream server using Python and the aiortc library might seem challenging at first, especially when integrating both Python and HTML/JavaScript components. In this article, we will explore a code example that demonstrates creating a basic Python video streaming server and the corresponding JavaScript code to connect to it. This implementation leverages WebRTC for real-time communication, focusing on a local network setup to stream video from a server to a browser. Understanding the Problem When working with WebRTC, one common issue developers face is related to Session Description Protocol (SDP) errors, specifically ValueError: None is not in list. This typically occurs when the offer or answer SDPs being exchanged do not contain valid track informatio…  ( 5 min )

Last week, we reimplemented our 20-questions variant, and it received quite a bit of attention. So far we built a web experience, as well as a command line interface for the game. However, unlike the web version, the command line interface is strictly local. There’s no way to share the game with a fellow friend unless we walk them through the setup. Coincidentally, a former coworker recently told me about hosting applications over secure shell protocol in Golang. That makes me wonder, how easily can we replicate it in Python? Leveling Up LLM Game Development with DSPy A cute illustration from Copilot on the topic. The secure shell protocol (SSH) is usually what we use to log into another machine for work. Yet, there are a lot of interesting applications hosted over SSH. I remember there w…  ( 11 min )

Get the Weather: A Clean and Practical Python Script If you're learning Python and want a simple yet useful project, writing a script to fetch real-time weather data is a great way to apply your skills. It’s not just about making an API call—it’s about thinking logically, handling data responsibly, and building something that can grow with your curiosity. Programming challenges your critical thinking, and even small projects like this one open the door to creative problem-solving. Let’s walk through how to build a weather-fetching script using Python and the OpenWeatherMap API. This script teaches you how to: Work with a real-world API Process and format JSON data Structure your code clearly Handle errors gracefully What starts as a simple utility can become a launchpad for more ad…  ( 4 min )

Google’s A2A protocol and Anthropic’s MCP framework both offer powerful mechanisms for building intelligent AI agents — but what if I told you we can combine both in a single Java application? The a2ajava framework simplifies AI agent creation, enabling seamless A2A communication while exposing reusable AI tools via MCP. By integrating both technologies, you can unlock unparalleled AI interoperability, allowing your Java applications to interact dynamically within the broader AI ecosystem. Example Source code here Want to build the next-generation AI agents? Let’s harness the combined strength of A2A and MCP for true AI-driven automation! Test your knowledge on A2A and MCP The a2ajava framework offers a powerful yet intuitive way to transform your Java applications into active participants…  ( 6 min )

When working with Go, handling JSON data is a common task. In the code snippet you're referring to, we see the use of a specific method: (*jsontext.Value)(&b).Indent(). This can be a bit confusing for those who are new to Go or JSON manipulation. So let’s break it down. Understanding JSON Marshaling in Go In Go, the encoding/json package is typically used to encode and decode JSON. In your example, b, _ := json.Marshal(output) marshals the output variable into a JSON byte slice b. The underscore _ is used to ignore any errors that may occur during marshaling. This is often a pattern when we are confident that there won't be an error or we want to handle it later. What is *jsontext.Value? The section (*jsontext.Value)(&b).Indent() involves a couple of key components. First, jsontext.Value i…  ( 4 min )

Abstract This post provides a comprehensive exploration of India’s dynamic open source development ecosystem. It delves into historical context, core concepts, community building, practical applications, challenges, and future innovations. We discuss how talented developers, vibrant communities, and supportive government initiatives converge to power open source growth in India. The article also integrates additional insights and external resources—from global developer hubs like GitHub to government-led initiatives such as the Digital India Initiative—to illustrate the role India plays in the broader technological landscape. Throughout, we incorporate structured data with tables and bullet lists to aid readability and ensure that both humans and search engines can easily digest the cont…  ( 9 min )

If you're running a Go program that incorporates C code, you might find yourself puzzled when the expected output doesn't display. In your case, the C function intended to print 'Hello' is not functioning as expected. Below, we explore why this issue occurs and provide clear solutions to ensure your C code executes as intended within your Go program. Understanding the Problem When integrating C code within a Go program, several factors could prevent your printf statements from displaying output correctly. The issue may stem from how Go manages standard output for its C interop, especially regarding the runtime or the environment. Reasons Why Output Might Not Appear Buffering Behavior: In C, the standard output is usually line-buffered when associated with a terminal. This means output is o…  ( 4 min )

📚 Table of Contents The Mission: Lock It Down Step 1: Summon the User Step 2: Build the Playground Step 3: Hand Over the Keys Step 4: Lock the Gates Step 5: Drop Some Code Magic Step 6: Check Your Work Like a Paranoid Pro What I learned (or, Level Ups Earned) Real Talk So there I was, sitting in front of my terminal, sipping lukewarm coffee, when it hit me: I must protect this server like it's the last bastion of humanity... or at least make sure Bob the Web Developer doesn’t break stuff he shouldn’t touch. In this epic (okay, modest) Linux quest, I spun up my beginner sysadmin skills to set up a secure web directory for a new user on Red Hat Enterprise Linux 9 — and made sure only they could mess with it. Let me walk you through it. Capes are optional, but sudo is not. 🗂️ Objective:…  ( 4 min )

The Ultimate Guide to Monitoring in Model Context Protocol In the rapidly evolving landscape of AI agent systems, the Model Context Protocol (MCP) has emerged as a powerful standard for enabling AI models to interact with tools and external resources. As organizations increasingly deploy MCP servers in production environments, robust monitoring becomes not just beneficial but essential. This guide explores how to implement comprehensive monitoring for your MCP deployments to ensure reliability, performance, and security. I've recently been building a solution for mcp monitoring and wanted to type up some of what I've learned. Monitoring MCP deployments presents unique challenges that differ from traditional application monitoring. Unlike simpler systems, MCP involves complex tool execu…  ( 9 min )

Introduction If you’ve ever wanted to deploy a full-stack application without worrying about managing servers or scaling infrastructure, Google Cloud Run is a game-changer. In this post, we’ll walk through deploying a modern React frontend and Node.js backend using Cloud Run — Google Cloud’s fully managed container platform. Whether you're building a personal project or a production app, Cloud Run helps you go live quickly. Architecture Overview Here’s a simplified flow of how the app works: Users access the frontend hosted on Cloud Run. The frontend makes API requests to the backend, also hosted on Cloud Run. The backend processes the requests and sends back responses (JSON data). Cloud Run handles traffic, scaling, and security for both services. What We’re Building In this guide, we’ll …  ( 5 min )

Hi, my dear reader! My name is Andrew Maksimchenko! 👨🏻‍💻 This is my first article on Dev.To platform, so let's first meet each other and share our expertise! I’m a Certified International IT Jury, Engineering Manager, Solution Architect, Lead Full-stack Developer, and Passionate IT Mentor with 10+ years of versatile professional experience. Embarked on my programming journey from early school days. Obtained Bachelor's and Master's Degrees in Computer Science and Software Engineering. I have profound expertise in JavaScript, Node.js, Databases, System Design, and AWS. I love Web Development and Engineering Management. But I've also worked extensively on creating hybrid Mobile & Smart TV **apps, **DevOps, Delivery & Resource Management, Software Architecture, and Interviewing. I also use…  ( 4 min )

Here’s a clean, step-by-step guide to help you get up and running with OpenTelemetry in a real-world, containerized setup ideal for Python-based services running in Kubernetes. 🆚 Auto-Instrumentation vs Manual-Instrumentation in OpenTelemetry Feature Auto-Instrumentation Manual Instrumentation Definition Automatically instruments supported libraries and frameworks using OpenTelemetry wrappers. Requires you to explicitly define spans in code using the OpenTelemetry API. Setup Minimal changes — just install dependencies and run via opentelemetry-instrument CLI. Requires importing OTEL SDK and wrapping logic with spans manually. Use Cases Quick observability setup, ideal for supported web frameworks like Flask, Django, FastAPI, SQLAlchemy, etc. Fine-grained control — custom logic,…  ( 4 min )

Abstract: This post provides a holistic guide to valuing blockchain projects by combining traditional financial methodologies with blockchain-specific metrics. We break down blockchain basics, project components, tokenomics, and valuation models. Practical use cases, challenges, future trends, and risk management strategies are discussed. In addition, we explore community evaluation, governance, and technological benchmarks, supporting the analysis with tables, bullet lists, and authoritative links from trusted sources. In recent years, the blockchain ecosystem has evolved beyond merely powering cryptocurrencies, becoming a dynamic platform for decentralized applications and innovative finance solutions. As blockchain technology gains adoption across sectors—from finance to supply chain m…  ( 7 min )

Stop Letting One Bug Break Everything: Master Component Error Boundaries in Remix JS (Beginner to Pro Guide) Prince Tomar ・ May 4  ( 2 min )

How to Implement Component Error Boundaries in Remix JS: A Beginner to Advanced Guide When building modern web applications with Remix, one of the biggest challenges developers face is gracefully handling errors without compromising the entire user experience. Imagine your dashboard is working fine—except one widget fails and suddenly your entire page goes blank. This guide will walk you through implementing component-level error boundaries in Remix using a practical and open-source approach. No packages to install—we’ll reference the actual GitHub repo and dive into real-world usage with step-by-step guidance. What is an Error Boundary? In React, an error boundary is a component that catches JavaScript errors in its child component tree and displays a fallback UI instead of crashin…  ( 5 min )

When working with 3D graphics, projecting a world position to screen space can sometimes lead to unexpected results, like the mirrored effect you're observing. This issue often arises from the way matrices—specifically the view-projection matrix—are combined when rendering a scene. In your code, you mention that the screen position moves in the opposite direction when you rotate the camera. Let's delve deeper into why this might be happening and how we can fix it effectively. Understanding the Problem In your code, you set up the view and projection matrices and then combine them to create a view-projection matrix. However, if the view matrix isn't correctly set up to reflect the camera's orientation, the resulting transformations can appear inverted or mirrored. To ensure proper functiona…  ( 5 min )

Machine intelligence is transforming the field of application security by facilitating heightened bug discovery, test automation, and even semi-autonomous attack surface scanning. This article offers an in-depth discussion on how AI-based generative and predictive approaches operate in the application security domain, written for AppSec specialists and stakeholders in tandem. We’ll delve into the growth of AI-driven application defense, its present features, obstacles, the rise of autonomous AI agents, and future developments. Let’s begin our exploration through the history, current landscape, and future of artificially intelligent AppSec defenses. History and Development of AI in AppSec Early Automated Security Testing Progression of AI-Based AppSec A major concept that emerged was th…  ( 11 min )

Introduction Hey there! I'm Aadarsh Verma, Sure, I could've chosen Java or Kotlin, but who has time for that when you're juggling college assignments, right? That's when I discovered React Native - same JavaScript foundation, but for mobile apps! Win-win! 🎯 Let me be real with you - I failed multiple times trying to build this Google Auth + CRUD app. The lack of proper tutorials, mentors, and clear guidance was frustrating. But you know what? I had two secret weapons: determination and the official React Native Firebase documentation! Let's jump right in and create our React Native app with Firebase integration. // I'm using Bare React Native // Open your terminal and run: npx react-native init fireApp // This command will download all necessary files and dependencies First, install …  ( 6 min )

🎁 Grab These Exclusive Tech Learning Kits (Dev.to Readers Only) Before you dive into the article, here are two must-have learning kits you can claim today: 🎁 The Evolution of Hacking: From Phone Phreaking to AI Attacks 🎁 The Secret Operating Systems You Were Never Meant to Use Perfect for developers, cybersecurity enthusiasts, and tech historians who love uncovering what’s beneath the surface. “If you still think your password is safe, you’re already behind—our script just uncovered 1,237 leaked credentials in under three minutes.” That’s not clickbait. It’s the reality of today’s data‑leak ecosystem: pastebins, breach dumps, GitHub gists, and dark‑web indexes all overflow with exposed credentials. In this expanded guide, you’ll get: Deeper explanations of each step Additional code …  ( 7 min )

✳️ Why Should We Care About Commit Message Structure? In any software project, every small change made to the codebase is recorded in Git history. This history is not just a log of what happened — it's a crucial tool for tracking changes, collaborating with others, managing releases, and automating development workflows. It becomes hard to understand why a change was made Generating changelogs becomes manual and time-consuming CI/CD tools can’t effectively leverage the commit history And in team environments, others struggle to follow your changes This is where Conventional Commits come into play. It’s a simple but powerful convention that allows us to write commit messages in a structured, readable, and machine-parsable way — making life easier for both developers and tools. 🧠 What is Co…  ( 4 min )

Recently in enterprise development, I came across a requirement to adjust and optimize a scheduled email-sending task. While the logic itself was straightforward, the debugging experience was not. Here's what made it tricky: The development environment lacks a unified interface to manually trigger backend @Scheduled tasks from the frontend. Debugging by modifying the cron expression means: Restarting the entire project every time Risking a flood of unintended emails While test code can directly invoke methods, it's not always clean or convenient. Let’s look at the scheduled task: @Component public class EmailScheduled { @Scheduled(cron = "0 0 23 * * * ?") public void emailSend() { // Actual email sending logic } } afterPropertiesSet to Trigger the Task The idea is simple: leverage the InitializingBean interface. Spring will automatically call afterPropertiesSet() when initializing a bean. So we can invoke emailSend() there to simulate a scheduled run. @Component public class EmailScheduled implements InitializingBean { @Scheduled(cron = "0 0 23 * * * ?") public void emailSend() { // Actual email sending logic } @Override public void afterPropertiesSet() throws Exception { emailSend(); // Triggered once at startup } } No cron modification No project restart just to adjust time No actual scheduling triggered — just one-time manual invocation Perfect for short-term debugging during development This is not meant to be a long-term solution. Remember to remove or disable this hack before deploying to production. For a more robust setup, consider exposing your scheduled tasks through an admin/debug endpoint or using Spring Boot Actuator with proper security controls.  ( 3 min )

🎁 Exclusive Side Hustle Starter Kits (Grab These Now) Before you get into today’s article, here are two powerful resources to help you launch or level up your side hustle: 🎁 🚀 8 Side Hustle Blueprint Kits – $95 Value for $69! (Save 27% Today) 🎁 🚀 15 Side Hustle Kits for $69 (Was $150) – Save 54%! 👉 Perfect if you’re building a business on the side and need clear, actionable blueprints to shortcut the learning curve. And the Ultimate Vault - 🔥 113 Dev Products, 1 Download: Everything You Need to Learn, Build, and Launch Projects That Sell — Only available for 5 days. Ever suspect something’s messing with your files? Today, we're building a Spy Folder—a Python script that watches a folder and tells you if anything changes: new files, renamed files, deleted files, or anythin…  ( 6 min )

My next post will be about Amazon DocumentDB and how it compares to MongoDB in terms of indexing a flexible schema with multiple keys. There's a lot of confusion today with the "DocumentDB" name because earlier this year Microsoft announced DocumentDB: Open-Source Announcement which has nothing to do with Amazon DocumentDB. Amazon DocumentDB is a managed NoSQL database service that supports document data structures and is compatible with MongoDB versions 3.6, 4.0, and 5.0. It allows users to store, query, and index JSON data. Its storage capabilities resemble those of Amazon Aurora, featuring compute and storage separation, a monolithic read-write node, up to 15 read-only replicas, and multi-AZ storage. There are guesses that the API is built on PostgreSQL and, which, if true, brings anoth…  ( 4 min )

As I've discussed forms in past blogs, now seems like a great time to delve into web accessibility. Accessibility is a broad topic that covers many areas and details, but I'll aim to provide an overall understanding from a web developer's perspective. Accessibility means developing content to be as accessible as possible, no matter an individual's physical and cognitive abilities and how they access the web. MDN What is Accessibility? Law WCAG (Web Content Accessibility Guidelines) as the foundation for the accessibility standards. Canada: The Standard on Web Accessibility requires all federal government websites to comply with WCAG 2.0 Level AA. Japan: The JIS X 8341-3 standard is aligned with WCAG, specifically addressing web accessibility for older adults and people with disabilities. …  ( 5 min )

Abstract: This post offers a holistic exploration of effective strategies to thank GitHub Sponsors with an emphasis on building long-lasting relationships and fostering project growth. We delve into the background of GitHub Sponsors, outline its key features, detail real-world applications, discuss challenges and limitations, and even project future trends in open source funding. Packed with tables, bullet lists, and carefully curated resources – including links to authoritative documentation and related Dev.to posts – this guide equips developers with the know‐how to express genuine gratitude and maintain a vibrant community. In today’s fast‐paced open source ecosystem, successful projects often rely on the generosity of sponsors. GitHub Sponsors is an innovative platform that allows dev…  ( 8 min )

Ever wondered what happens when you turn on a Linux computer? It’s like magic! Let’s break it down in simple steps: The kernel (the brain of Linux) and a helper called initrd take over. vmlinuz: The Brain of Linux initrd:The Helpful Sidekick Together, vmlinuz and initrd make sure your Linux computer starts quickly and smoothly, even if you’re not a tech expert. Next time your screen lights up, you’ll know the magic behind it! Follow Me for More Tech Insights! LinkedIn:linkedin.com/in/chandukh Medium:medium.com/@khchandu291 Twitter:https://x.com/chandu_kh37823 #Linux #TechBasics #vmlinuz #initrd #ComputerMagic  ( 3 min )

A post by Alex P  ( 2 min )

Real-time Facial Emotion Analysis with .NET 10 and gRPC Duc Nguyen Thanh ・ May 4 #webdev #ai #dotnet #programming  ( 2 min )

When building applications with Dart and Flutter, you might come across the frustrating issue of losing data on a TextInput field when the keyboard is dismissed. This typically occurs because the state of the input field is not being managed correctly. By utilizing a TextEditingController, you can ensure that the value users type into the text field remains intact even after they click 'Ok' or use the back button to hide the keyboard. Understanding TextEditingController In Flutter, a TextEditingController is an object that can be used to control a text field. It helps in retrieving the current value of the text field, listening to changes, and manipulating it. If you don’t initialize a TextEditingController, the text field will not maintain its state after interactions. Why the Value Disap…  ( 4 min )

Modern Android development is all about writing clean, efficient, and asynchronous code — and Kotlin Coroutines have become the go-to tool for that. If you're tired of callback hell and want to write non-blocking, readable code, coroutines are your best friend. In this post, we'll cover: ✅ What are Coroutines? 🔁 Coroutine vs Thread 🧭 Coroutine Scope 🚀 launch vs async 🔄 withContext ⚠️ Exception handling 📱 Real-world Android examples A coroutine is a lightweight thread that can be suspended and resumed. It allows you to perform long-running tasks like network calls or database operations without blocking the main thread. Coroutine = Co + routine i.e. it's the cooperation among routines(functions). Think of it as a function that can pause mid-way and resume later, keeping your UI respo…  ( 5 min )

Today is May 4th, and to celebrate this Star Wars occasion, I coded a cartoon about CSS and Tailwind using CSS (aka CSS Art). I will add it to the comiCSS website, to make company to the other Star Wars cartoons for this day (137 and 138).  ( 3 min )

Hello JavaScript Enthusiasts! Welcome to this week's edition of "This Week in JavaScript"! This week, we've witnessed a seismic legal victory that changed the app development landscape forever, groundbreaking performance boosters for JavaScript engines, and incredible tools going completely free. This Google Chrome Feature Makes JavaScript Run Faster Chrome's V8 team just dropped a game-changing feature that makes JavaScript blazingly fast! Key Features: Explicit Compile Hints let developers control which functions compile at startup Simple magic comment (//# allFunctionsCalledOnLoad) tells V8 what to prioritize Average load time improvements of 630 milliseconds across major websites Zero refactoring required - just add comments and watch performance soar This isn't just an incremental …  ( 5 min )

A smart developer once said: "Clean code isn’t some magic skill — it’s just a habit you build over time." And guess what? You can totally build that habit. Clean code means writing code that's clear, organized, and easy to work with. It makes your life (and your teammates’ lives) way easier. But let’s be honest — how many times have we said, “I’ll clean this up later”? Here’s the truth: There’s never a perfect time to refactor Messy code turns into technical debt — and sooner or later, you’ll have to deal with it. It’s better to start clean than to fix bugs forever later. Writing clean code isn’t as hard as it sounds. Actually, it can feel really natural once you get the hang of it. Think of it like building something with care — not just typing stuff out. Here are a few simple tips to he…  ( 4 min )

Já pensou em orquestrar todo o processo de compra de um marketplace com segurança, mesmo se der algum problema no meio do caminho? Hoje vamos fazer exatamente isso usando Azure Durable Functions em Node.js e o padrão de Saga para garantir que, se algo falhar, a gente consiga desfazer as etapas anteriores sem stress. Vamos passo a passo montar uma simulação de compra completa – do pagamento ao envio – num estilo bem descontraído (vem comigo que eu te explico 😉). Antes de botar a mão no código, vale aquela explicação rápida: Saga é um padrão de arquitetura usado para gerenciar transações distribuídas ou processos de negócio de longa duração. Em vez de travar tudo em uma única transação gigante (o que é impraticável num monte de microsserviços), o Saga divide o processo em uma sequência de e…  ( 16 min )

This is a submission for the Permit.io Authorization Challenge: API-First Authorization Reimagined @kevin_heidt_d73c1752454fb What I Built I built AutoSecure API Gateway, a robust API gateway solution for the automotive industry that implements API-first authorization principles. By leveraging Permit.io's NGINX integration, the project externalizes authorization logic from application code and enforces fine-grained access control at the gateway layer. This ensures consistent, centralized, and declarative policy enforcement across all APIs. The project demonstrates real-world use cases, such as managing vehicle telemetry, fleet operations, and driver analytics, while supporting multiple roles like vehicle owners, service technicians, and fleet managers. Try the live demo: Auto…  ( 4 min )

Chemical procurement plays a critical role in industries like pharmaceuticals agriculture manufacturing and energy. However managing chemical purchasing efficiently requires more than just comparing prices. It demands a careful balance of safety compliance cost savings and strong supplier partnerships. When it comes to chemicals compliance is non-negotiable. Companies must stay updated on regulations like REACH OSHA EPA or local environmental laws. Start by creating an internal compliance checklist that covers everything from product labeling to storage and transportation rules. Work only with suppliers who provide clear documentation including safety data sheets and certifications. Do not treat suppliers as just vendors treat them as partners. Build long-term relationships where trust tra…  ( 4 min )

What Drives New Languages Like Rust and Go to Embrace Composition and Abandon Inheritance? Java has a guideline: “Don’t use inheritance unless you have a good reason.” But Java doesn’t strictly limit inheritance — you can still use it freely. Go, however, is different: it only allows composition. So why do modern languages promote composition? Actually, it’s not just new languages — even the veteran Java mentions in Item 16 of Effective Java: “Favor composition over inheritance.” Inheritance is a powerful way to reuse code, but it may not be the best method. So it’s worth thinking this through carefully. Without diving into specific code, let's talk about the concepts. I believe we can explore this topic from the following perspectives: The characteristics of inheritance and composition Wh…  ( 8 min )

This is a submission for the Amazon Q Developer "Quack The Code" Challenge: Exploring the Possibilities In the middle of a long workday, how many times have you written a Slack message, paused, and thought: “Hmm… that sounds too harsh. Should I rewrite that?” Or: “Can this be clearer? Simpler? More polite?” Now you don’t have to second guess. Parrot is a Slack app that transforms your raw, rushed, or robotic messages into something more human — with improved politeness, clarity, or simplicity. You just type: /polite Can you do this now? And Parrot replies: "Would you be able to do this when you get a chance?" Or: /clarity Let’s sync up sometime soon. And Parrot says: "Let’s schedule a quick meeting this week to align." It’s like Grammarly — but instant, and inside Slack. How …  ( 5 min )

Decorators are a powerful way to enhance classes and their members (methods or properties) without touching their original code directly. 🎯 decorate behaviour in a clean and reusable way. Like adding toppings to a pizza 🍕 ⚠️ Decorators are a Stage-3 proposal in JavaScript. You can use them with TypeScript or Babel. A decorator is a special function you can attach to: A class A class method A class property It looks like this: @myDecorator class MyClass {} Or for methods: class MyClass { @log doSomething() {} } Think of a decorator as a function that wraps the original function, property, or class to change its behavior. Here's what happens behind the scenes for method decorators: When the class is defined, decorators are executed. The decorator function receives three arguments: ta…  ( 5 min )

During a recent incident, our team observed message loss from a Kafka producer during an Amazon MSK rolling patch. What began as a routine upgrade quickly uncovered hidden weaknesses in our producer's configuration. As we dug into the issue, I developed a clearer picture of how Kafka producers interact with broker leaders and what it truly takes to build a production-grade, fault-tolerant producer pipeline. This post captures those insights—covering the critical configuration options that influence message delivery reliability and the mechanisms behind them. Let’s begin by examining how message loss can occur during a rolling patch—and then broaden the lens to explore other scenarios where Kafka messages might be at risk.  Amazon MSK performs "rolling patches" to apply updates while minimi…  ( 9 min )

Abstract: In this post, we explore the dynamic world of drip tokens and decentralized finance (DeFi). We discuss the background and context of these tokens, highlight their core features and real-life applications, and analyze challenges and innovative trends driving the future of blockchain-based digital assets. With practical insights, secure wallet recommendations, and links to authoritative sources such as CoinGecko, MetaMask, and Trust Wallet, this guide bridges technical detail and accessible explanations for developers, investors, and enthusiasts alike. The rapid evolution of blockchain technology continues to open up new avenues for investment and innovation. One of the emerging trends is the rise of drip tokens. Often associated with sustainable yield and community rewards mechan…  ( 9 min )

Zedd:A Secure AI Knowledge Base with Fine-Grained Access Control For the Permit.io Authorization Challenge, I built Zedd-KB—a secure, AI-powered internal knowledge base designed for organizations that demand robust, fine-grained authorization over both AI actions and sensitive data access. Zedd-KB demonstrates how externalized authorization with Permit.io can safeguard information and AI capabilities in real-world applications. Zedd-KB is an internal knowledge base platform that leverages Retrieval-Augmented Generation (RAG) and advanced LLMs to answer user queries using only authorized, relevant content. It integrates Permit.io for dynamic, policy-driven access control, ensuring that every AI action and data access is checked against up-to-date security policies. Live Demo: https://zedd…  ( 5 min )

Introduction Artificial Intelligence (AI) has emerged as a transformative force across industries, promising unprecedented efficiency, innovation, and competitive advantage. However, the success of AI initiatives is inextricably linked to the quality and readiness of the data that powers them. As the saying goes, "garbage in, garbage out" – this maxim is particularly relevant in AI implementation, where poor data quality leads directly to unreliable outputs, biased decisions, and failed projects. This comprehensive guide explores data readiness assessment for AI implementation, providing a structured framework to evaluate if your organization's data is prepared to support successful AI initiatives. We'll examine key components of data readiness, assessment methodologies, and best practic…  ( 10 min )

Few months back, I built the GenQL tool to generate SQL queries from natural text with the ability to provide context of database schema of my database to the AI. Here, I'm sharing the concepts of a basic RAG implementation that made it happen. Retrieval-Augmented Generation (RAG) is a powerful approach that combines large language models (LLMs) with external knowledge sources. In this project, I implemented a RAG system using Python, Firebase Functions, OpenAI for embeddings, and Pinecone as the vector database. The system exposes three main APIs: indexing data, searching, and deleting namespaces. Let’s break down the concepts behind each API. Concept: Before you can search your data with natural language, you need to convert it into a format that a machine can understand and compare. Th…  ( 4 min )

*QuickCollab - Permissions- First Workspace Collaboration App -Thus is a submission for the Permit.io Authorization Challenge: Permission Redefined What I Build This project solves a very real-world need: teams need to collaborate, but not everyone should have the same powers. QuickCollab ensures users see and can act on only what they're authorized for — no more, no less. Demo https://permit-frontend-oafvwri0e-navankurusersessionmanagement.vercel.app/ Project Repo Using Permit.io for Authorization 🔐 Used @permitio/sdk in a centralized permit.js file 🧠 Implemented checkPermission() and assignRole() functions in a custom service layer 🛠️ Integrated with Express backend via role-based API routes (/assign-role and /check-permission) 🔁 Roles (admin, manager, etc.) and resources (workspace:123) are dynamically registered and queried using the Permit.io cloud PDP Permit.io helped me implement real RBAC and ABAC logic faster than building an in-house system — and with way more confidence. Shoutout Thanks to the Permit.io team for enabling builders like me with a tool that makes fine-grained access control actually practical. This was more than a submission — it was a step toward building better, safer, and more intentional apps. ** Team Members** Solo+AI Submission – built with passion and pain (and a little help from AI ❤️)  ( 3 min )

Check out this Pen I made!  ( 2 min )

Hey everyone! 👋 In this blog, I’ll walk you through my experiments using ClusterIP, NodePort, and LoadBalancer, along with a quick intro to manual pod scheduling on specific nodes. Let’s go! 🚀 First, I created a simple ReplicaSet using the following YAML: # myapp.yml apiVersion: apps/v1 kind: ReplicaSet metadata: name: webapp spec: replicas: 5 selector: matchLabels: app: web template: metadata: labels: app: web spec: containers: - name: mycontainer image: nginx kubectl apply -f myapp.yml ClusterIP is the default service type and is only accessible within the cluster. # cip.yml apiVersion: v1 kind: Service metadata: name: mysvc spec: type: ClusterIP ports: - targetPort: 80 # container port port: 5000 # s…  ( 5 min )

In the ever-expanding world of polyglot programming, Jython provides a unique advantage by combining the expressiveness of Python 🐍 with the robustness of Java ☕. This guide outlines the step-by-step procedure to install, configure, and run Jython on your system, enabling seamless development within JVM environments. Before installing Jython, ensure the following requirements are met: - ✅ **Java Development Kit (JDK)** installed (version 8 or above) - ✅ Environment variable `JAVA_HOME` set correctly - ✅ Internet connection to download Jython installer > 🔍 You can verify Java installation using: java -version If Java is not installed, download it from the Oracle JDK page or use OpenJDK. 📥 Step 1: Download the Jython Installer Example file: jython-installer-2.7.3.jar 📁 Save it in an…  ( 4 min )

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Hiya 👋! So, it's Sunday, homeboy, and I usually escape debates and negative thoughts. But today, I was scouring dev.to and stumbled across a post boldly titled "Stop Using AWS." It wasn't the first time I'd seen a call to drop Amazon Web Services for something "simpler", but this one hit a nerve, not because it was provocative, but because it misrepresents why AWS exists and what problems it solves. So, I decided to sit back, relax, and explain why you should absolutely keep using AWS, especially if you're serious about software, scalability, and sustainability. The post opens with a classic anecdote: a developer builds an MVP with all the AWS bells and whistles, Lambda, API Gateway, Cognito, S3, DynamoDB, and no one uses it. The conclusion? AWS was overkill. But let's be honest: blaming …  ( 7 min )

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A Proposal for a New State Management Method to Drastically Simplify Frontend Framework State Management !!! ATTENTION !!! Want to see it in action? Check out the prototype repository or try the demo. I will explain step by step. State management is class-based, and state is managed with properties. set trap, which issues update triggers. If there are multiple state updates, efficiency is improved by batching, such as accumulating updated properties and executing them together. class State { count = 0; increment() { this.count = this.count + 1; } } class StateHandler { set(target, prop, value, receiver) { try { return Reflect.set(target, prop, value, receiver); } finally { trigger(prop, value); // Update trigger } } } proxy = new Proxy(new State, n…  ( 8 min )

A well-thought-out project structure is one of the most critical aspects of your project. It sets the foundation for how scalable your application will be in the long run. The higher up you go in the structural hierarchy, the more important it is to get it right from the beginning. Mistakes at the top can lead to bad practices and cost you later on. Lower-level decisions (like file or folder organization within a feature) offer more flexibility—it's less painful. Adjusting or removing a single leaf from a tree doesn't impact the whole tree, but doing the same with the entire branch can affect all its sub-branches and leaves. Similarly, changing the fundamental structure of a real-world system is never easy, it's usually extremely risky and time-consuming, so investing in a solid foundatio…  ( 6 min )

IaaS, PaaS, and SaaS in detail Think of running a software application like getting from Point A to B. There are different ways to do it: Model Analogy Who Manages What IaaS (Infrastructure as a Service) You rent a car You drive, fuel, clean, and maintain it PaaS (Platform as a Service) You use a taxi service They provide the car and driver; you just ride SaaS (Software as a Service) You use public transport Everything is managed for you; you just sit and go Virtual machines Storage Networking Operating System (you install) Full control over the environment You manage OS, applications, runtime, data Provider manages hardware, virtualization, networking Microsoft Azure VMs, AWS EC2, Google Compute Engine 💡 Real-life example: raw apartment (VM). You bring in furniture (OS/apps), arrange it (configs), and clean it (security/patches). Runtime environment Pre-installed OS and libraries Scaling and patching handled Focus on code and deployment You manage code and data Provider manages infrastructure, OS, middleware, scaling Heroku, Google App Engine, Azure App Service, Vercel (Next.js Hosting) 💡 Real-life example: food truck kitchen. It's stocked and ready. You bring your recipe (code), cook, and serve. No cleaning or buying equipment. Fully functional software No installation or maintenance Access via browser or app Provider manages everything You just use it Gmail, Google Docs, Salesforce, ChatGPT, Figma 💡 Real-life example: restaurant. Everything is ready – food, service, cleanup. You just enjoy the meal. Feature IaaS PaaS SaaS Flexibility 🔥🔥🔥 🔥🔥 🔥 Control 🔧 Full ⚙️ Medium 🙌 Minimal Setup Effort 🚧 High 🧱 Medium ✅ Low Use Case Custom enterprise apps Web app dev/deployment End-user productivity tools  ( 3 min )

Master both front-end and back-end development along with blockchain and smart contract integration using Web3 technologies. Week 1-2: Web Development Fundamentals Day 1: HTML & CSS basics Setting up the development environment Browser DevTools overview Day 2: Responsive design with Flexbox & Grid Basic layouts and components Day 3: JavaScript fundamentals Variables, loops, functions, and arrays Day 4: JavaScript DOM manipulation Event handling and form validation Day 5: JavaScript ES6+ features: let/const, arrow functions, destructuring Day 6: Introduction to Git & GitHub Basic Git commands (clone, commit, push, pull) Day 7: Mini Project: Build a personal website using HTML, CSS, and JavaScript Week 3-4: Advanced Frontend (React) Day 8: Introduction to React JSX, Components, and Props…  ( 6 min )

This is a submission for the Permit.io Authorization Challenge: Permissions Redefined What I Built Demo Project Repo My Journey Using Permit.io for Authorization  ( 2 min )

28.04.2025 Monday Tutorials Youtube Tutorial : CSS Video https://youtu.be/OXGznpKZ_sA?si=qca7aCGn7SqiPtaq Youtube Tutorial : Semantic HTML-1 https://youtu.be/bOUhq46fd5g?si=aYAsnZM-kDCvDS88 Youtube Tutorial : Semantic HTML-2 https://youtu.be/MxN8mo9QCDk?si=JgOhVLU8XTpVGXC4 29.04.2025 Tuesday Tutorials Youtube Tutorial : CSS Video https://youtu.be/OXGznpKZ_sA?si=qca7aCGn7SqiPtaq Scrimba Course : Clean code https://scrimba.com/introduction-to-clean-code-c025 Resources FrontendMentor Challenge : social links profile https://github.com/UPinar/frontend_mentor/tree/main/social-links-profile 30.04.2025 Wednesday Tutorials Youtube Tutorial : Wrapper class https://youtu.be/tr7EH48TFiE?si=TpYHIO9vMDOIFXVD Youtube Tutorial : auto-fit auto-fill …  ( 3 min )

Spring WebFlux: O Futuro das Aplicações Reativas O desenvolvimento de aplicações escaláveis e eficientes tem se tornado cada vez mais essencial. O Spring WebFlux, introduzido no Spring 5, surgiu como uma alternativa ao tradicional Spring MVC, trazendo um modelo de programação reativo e não bloqueante, ideal para cenários de alta concorrência e baixa latência. Este artigo apresenta os principais conceitos do WebFlux, sua diferença em relação ao modelo tradicional e como implementá-lo em uma aplicação. O Spring WebFlux foi projetado para atender às demandas de aplicações modernas, otimizando o uso de recursos do sistema e proporcionando uma experiência mais fluida para os usuários. Suas principais características incluem: Modelo baseado no padrão Reactive Streams: possibilita o processamen…  ( 5 min )

1128. Number of Equivalent Domino Pairs Difficulty: Easy Topics: Array, Hash Table, Counting Given a list of dominoes, dominoes[i] = [a, b] is equivalent to dominoes[j] = [c, d] if and only if either (a == c and b == d), or (a == d and b == c) - that is, one domino can be rotated to be equal to another domino. Return the number of pairs (i, j) for which 0 <= i < j < dominoes.length, and dominoes[i] is equivalent to dominoes[j]. Example 1: Input: dominoes = [[1,2],[2,1],[3,4],[5,6]] Output: 1 Example 2: Input: dominoes = [[1,2],[1,2],[1,1],[1,2],[2,2]] Output: 3 Constraints: 1 <= dominoes.length <= 4 * 104 dominoes[i].length == 2 1 <= dominoes[i][j] <= 9 Hint: For each domino j, find the number of dominoes you've already seen (dominoes i with i < j) that are equivalent. You can keep track o…  ( 25 min )

What if LLMs had opinions and argued in threads? What happens when we give LLMs not just memory and tools, but also autonomy, voices, perspectives, and structure? I built a simple CLI tool, a tiny experiment in multi-agent, tree-of-thought reasoning. The tool lets you simulate a conversation between different AI personas, each contributing their thoughts in a threaded format. This concept of enabling language models to work together to solve complex problems, with each agent assuming a unique role based on its strengths, is a central tenet of multi-agent LLM systems. Such systems are often observed to outperform traditional single-agent models, particularly when dealing with intricate tasks that necessitate diverse expertise and collaborative decision-making. The CLI tool I built supports:…  ( 6 min )

Product engineers, Developer advocates, or Technical writers? If you're looking for a new opportunity in the dev tools space, this post is for you. Below are 17 open roles in dev-first companies. CloudBees is hiring a Technical Writer dbt is hiring a Growth Engineer Elastic is hiring a Technical Writer Fivetran is hiring a Lead Developer Advocate Langfuse is hiring a Developer Advocate #opensource Neon is hiring a Full-Stack Growth Engineer Sentry is hiring a Senior Developer Advocate Supabase is hiring a Growth Engineer #opensource Temporal is hiring a Staff Developer Advocate Vercel is hiring a DX Engineer Wiz is hiring a Technical Writer WorkOS is hiring a DX Engineer GitBook is hiring a Product Engineer Codeium is hiring a Technical Content Marketer Helicone is hiring a Founding DevRel Lead #opensource Knock is hiring a Product Engineer Mintlify is hiring a Product Engineer That's a wrap! If this helped, please add some ❤️🦄🤯🙌🔥 Every Sunday, I hand-pick open roles in the dev tools space and post them on Twitter / X and LinkedIn. Looking for more open roles? You can find my latest posts here. Is your company hiring? Please let me know! Reply here or send me a DM, and I'll make sure to add it to the next edition. See you next month — keep it up! 👋  ( 4 min )

Environment variables (.env files) are a popular way to manage configuration and secrets in modern applications. leaving these files unencrypted exposes critical API keys, database credentials, and other sensitive data to risk. In this post, we’ll explore why encrypting your environment variables is essential, introduce dotenvx—a lightweight CLI for encrypting/decrypting your .env files—and compare it with other industry-standard methods for secret management. Version Control Exposure: Accidentally committing .env files can leak secrets publicly (e.g., GitHub incident examples). Lateral Movement: If an attacker gains read-only access to a development server, they can harvest keys to pivot deeper into your systems. Compliance & Auditing: Many regulations (PCI-DSS, GDPR) require encrypti…  ( 4 min )

A Complete Guide with Examples When designing or working with RESTful APIs, understanding HTTP status codes is essential. These codes are the way your backend communicates success or failure back to the client. In this guide, we'll cover: What each common status code means When to use it Examples per HTTP method (GET, POST, PUT, PATCH, DELETE) Tables for quick reference Let's dive into it! HTTP status codes are standardized numbers returned by a server to indicate the result of a client's request. They are divided into five categories: Code Range Category Meaning 1xx Informational Request received, continuing 2xx Success The request was successfully handled 3xx Redirection Further action needs to be taken 4xx Client Error The request is incorrect 5xx Server Error The serve…  ( 4 min )

In today's rapidly evolving business landscape, artificial intelligence (AI) has transitioned from a futuristic concept to a crucial competitive advantage. According to recent research, AI adoption among businesses has increased from 50% to 72% in just six years, with 92.1% of businesses reporting significant returns on their AI investments in 2023. However, despite the clear benefits, many organizations struggle to determine if they're truly ready for AI implementation. This comprehensive guide explores the five key indicators that your business is prepared for AI adoption and provides practical steps to begin your AI journey successfully. The first and most crucial sign that your business is ready for AI is having well-defined business objectives and specific problems that AI can solve. …  ( 7 min )

Se você já trabalhou com desenvolvimento de software, sabe que mudanças são inevitáveis. O cliente sempre pede algo novo, os requisitos mudam e, quando você acha que tudo está certo, surge um bug inesperado. Para lidar com essa realidade caótica, nasceu o Extreme Programming (XP), uma metodologia ágil que leva a colaboração, a qualidade e a adaptação ao extremo. Mas o que isso significa na prática? Vamos explorar como o XP funciona e por que ele pode ser uma ótima opção para equipes de desenvolvimento que querem mais eficiência e menos dores de cabeça. O XP foi criado nos anos 90 por Kent Beck, um programador que percebeu que os métodos tradicionais de desenvolvimento não estavam funcionando tão bem para projetos que precisavam de mudanças rápidas e constantes. Em vez de seguir um plano rí…  ( 5 min )

Kubernetes has been used by organizations for nearly a decade – from wrapping applications inside containers, pushing them to a container repository, to full production deployment. At some point, we need to troubleshoot various issues in Kubernetes environments. In this blog post, I will review some of the common ways to troubleshoot Kubernetes, based on the hyperscale cloud environments. Before we deep dive into Kubernetes troubleshooting, let us review some of the common Kubernetes errors: CrashLoopBackOff - A container in a pod keeps failing to start, so Kubernetes tries to restart it over and over, waiting longer each time. This usually means there’s a problem with the app, something important is missing, or the setup is wrong. ImagePullBackOff - Kubernetes can’t download the c…  ( 6 min )

Originally shared here: Released on April 30th, 2025, the Phi 4 Reasoning model series is the latest generation of LLMs from Microsoft. It's the first model in the Phi series designed for reasoning tasks. benchmarks look great, but my experience didn't match. Let's check it out! Here's a quick look at what you can choose from: Model Params Max Context phi4-reasoning-plus 14.7B 32K phi4-reasoning 14.7B 32K phi4-mini-reasoning 3.8B 32K Some key model details: All models are licensed under MIT. This makes them quite accessible for various applications. Notably, the context window isn't that great, especially for a reasoning model. Even the 8B variant of the recently released Qwen3 model has a larger context window. However, it should work for most local purposes. The training da…  ( 4 min )

Hey there! 👋 Let’s talk about something I love to call vibe coding. No, it’s not a new framework or tool. It’s just a mindset — a way of coding where I feel good, relaxed, focused, and actually enjoy the process. Over time, I’ve realized how important it is not just to do the work, but to feel good while doing it. So here’s my take on vibe coding — what it is, why it helps, how I do it, and yes, even the few drawbacks I’ve noticed. 🌟 What Is Vibe Coding? It can mean: Putting on some lo-fi beats or instrumental music 🎧 Having a clean desk with a coffee by my side ☕ Using a theme I like (yes, I’m that person who changes their VS Code theme often 😅) Working on something I actually care about Taking breaks when needed, not when I’m burnt out It’s simple: vibe coding is when I ma…  ( 5 min )

Written by Nabil It's 2025 and Astro is a growing framework. In this quick post, I'd like to share a little bit about my little workaround when I was building my personal website for the first time. Astro has a static-first architecture and I was going to use it without its on-demand SSR feature. So just for a note, this means I couldn't use Astro session that could've been handy for operating states handled by server. Meanwhile, I also used Vue.js alongside Astro with its integration portability (sorry if it looks like I am doing an experiment here, yes I'm still learning). Everything went well until I encountered something in a Vue component that needs the Astro's context object. Say that you need Astro.url. This URL-object property can only be accessed in Astro's render context object:…  ( 4 min )

Leapcell: The Best of Serverless Web Hosting In Python programming, multithreading is a commonly used means of concurrent programming, which can effectively improve the execution efficiency of the program, especially when dealing with I/O-intensive tasks. Python makes multithreading programming relatively easy with the help of the threading module. This article will delve into the basic knowledge of the threading module and demonstrate the application of multithreading through examples. Before starting, let's first understand some basic concepts of multithreading programming: Thread: It is the smallest unit for the operating system to perform operation scheduling, usually existing inside a process. Multithreading: It refers to running multiple threads simultaneously in the same program. GI…  ( 12 min )

Introduction The Alibaba recently team has released the Qwen 3 Series, including two standout models: the 235B parameter MoE model (with 22B active parameters) and a lightweight 30B version (3B active). As per official docs, the Qwen3-235B-A22B model take on giants like DeepSeek R1, Grok-3, and Gemini 2.5 Pro—and it is doing it with fewer active parameters, faster inference, and open-source accessibility. On the other hand, on a lighter note the Qwen3-30B-A3B outcompetes the previous QwQ-32B with 10 times of activated parameters, and a small model like Qwen3-4B can rival the performance of Qwen2.5-72B-Instruct. Best part, takes fraction of cost per million input and output token, compared to SOTA models. Impressive, isn’t? Alibaba released Qwen 3, featuring efficient MoE models (235B …  ( 14 min )

Knowledge graphs are powerful tools to visualize and explore your data, and can help uncover new insights and patterns in how your data is related. They are easy to search and navigate, but getting your data into the graph database in the right format can be challenging. And the resulting graph is only as good as the data--- or as they say, garbage in, garbage out. So it's important to define a good schema, or ontology, that describes the entities and relationships you want to extract from your data. With unstructured text, you can use an LLM to extract entities and relationships, and then generate a Cypher query using the model (guide). This can take a lot of the work out of generating the Cypher queries but it comes with the risk of hallucinations, and the security and privacy concerns o…  ( 7 min )

Overview This project is a simple Flask application that serves as a template for building web applications. It includes a basic structure with Docker support for easy deployment and development. Before you start, make sure you have the following installed: Docker Docker Compose Usage: bash cmd.sh {start|stop|setup|clear|build|deploy} setup If you haven't built the project yet, you can do so by running: bash cmd.sh setup To run in detached mode, use: bash cmd.sh setup -d Once the setup process is complete, the project will be accessible at localhost:8000. If this port is already in use, search for all occurrences of 8000 within the project and replace them with your preferred port number. After making these changes, you'll need to rebuild the project for the modifications to take ef…  ( 4 min )

A post by Tahir Rafique  ( 3 min )

Podman is an open-source container engine that enables users to create, manage, and run OCI containers and pods across Linux, macOS, and Windows. Unlike Docker, Podman is daemonless, running containers directly under the user's control, which brings unique benefits in security and flexibility. Daemonless Operation Podman does not require a central background service. Each container runs as a child process of the user, reducing resource overhead and improving security by eliminating a single point of failure. Rootless Containers Podman supports running containers without root privileges. This greatly reduces the risk of privilege escalation and is ideal for multi-user systems or environments with strict security requirements. Docker Compatibility Podman’s command-line interface is largel…  ( 5 min )

Here’s a rewritten and Markdown-cleaned version of your blog, ready to use on Dev.to or any Markdown-supported platform: Understand the key differences between Docker bind mounts and volumes, when to use each, and how they work under the hood. When working with Docker, managing data persistence is essential. Two primary methods for sharing and persisting data with containers are: ✅ Bind Mounts Volumes Though they might appear similar, these approaches serve distinct use cases and behave differently under the hood. In this post, we’ll explore the differences between Docker Bind Mounts and Volumes, when to use each, and how to get started. A volume is a Docker-managed storage mechanism. Docker handles the data location and lifecycle, making it the preferred way to persist data—especially in …  ( 4 min )

Job Summary This is a senior PHP developer position at Skycop, a flight compensation service company. The role involves working on a claim processing platform, handling large datasets, and developing new travel industry products. The tech stack is centered around PHP (Symfony/Laravel), with heavy usage of microservices, big data processing, and various third-party API integrations. The position requires strong backend development skills with emphasis on scalable architecture and efficient data processing. https://prepto.tech/blog/preparing-for-senior-php-developer-role-at-skycopcom This guide covers the following topics, specific to the job: Microservices Architecture and Communication Big Data Processing and Optimization Advanced PHP and Framework Expertise Database Optimization and Caching Message Queues and Async Processing  ( 3 min )

Kubernetes clusters are easy to spin up — but making one that's secure, scalable, and developer-friendly? That's the real challenge. I recently published a detailed, opinionated guide: This article walks through everything we’ve learned running hardened, production-grade clusters in the wild — including practices you won’t always find in the docs. 🛠️ What’s inside? 🔁 GitOps-first workflows with ArgoCD (App of Apps) 🔐 Secrets via Vault, no root containers, SSO-only access 📊 Prometheus, Grafana, and meaningful alerts ☠️ Chaos testing and real disaster recovery drills 💻 Backstage + Dev tooling to make platforms dev-friendly 🚨 Automated upgrades, cert rotation, version hygiene 🧠 Whether you're running EKS, GKE, or bare-metal clusters — this is a blueprint you can adapt and evolve. 👇 I'd love to hear from you: What's one trick you’ve learned the hard way that you wish others knew? Let's learn from each other — because great clusters aren't born, they’re built. 💬 Comments, feedback, and memes welcome. How to make a k8s cluster  ( 3 min )

Kubernetes assembles one or more computers, either virtual machines or bare metal, into a cluster which can run workloads in containers. It works with various container runtimes, such as Docker. The Kubernetes master node handles the Kubernetes control plane of the cluster, managing its workload and directing communication across the system, etcd is a persistent, lightweight, distributed, key-value data store (originally developed for Container Linux). It reliably stores the configuration data of the cluster, representing the overall state of the cluster at any given point of time. The API server serves the Kubernetes API using JSON over HTTP, which provides both the internal and external interface to Kubernetes. The API server processes, validates REST requests, and updates the state of t…  ( 5 min )

In today's fast-paced web applications, real-time notifications have become essential for providing users with immediate updates and enhancing their overall experience. In this comprehensive guide, I'll walk you through creating a real-time notification system using Vue 3's Composition API, Laravel Echo, and Pusher. The implementation we'll cover includes a complete notification system with features like: Connection management with automatic reconnection Persistent subscriptions that survive page refreshes Notification state management Elegant UI components for displaying notifications Browser notifications support Prerequisites Understanding the Architecture Setting Up Laravel Echo Creating a Notification Service Building the Notification Store UI Components for Notifications Integrating …  ( 12 min )

AutoDrawer bilgisayarın faresini otomatik olarak hareket ettirerek görsel çizebilen açık kaynaklı bir yazılımdır. Paint gibi uygulamalarda resmi kendi başına çizer. Kurulumu ve kullanımı oldukça basittir. Aşağıdaki adımları takip ederek dakikalar içinde kullanmaya başlayabilirsin. AutoDrawer'ı kullanabilmek için önce GitHub üzerindeki proje sayfasına gidip dosyaları indirmen gerekiyor. AutoDrawer GitHub Sayfası Sağ üstten Code butonuna tıkla Açılan menüden Download ZIP seçeneğini seç ZIP dosyasını bilgisayarına indir İndirdiğin .zip dosyasına sağ tıklayarak çıkart. “Buraya çıkart” veya “Tümünü ayıkla” gibi bir seçeneği seç Çıkardığın klasörün içinde şu yola sırayla gir: autodrawer-master\AutoDrawer\bin\Debug\ Bu klasörün içinde AutoDrawer.exe adında bir dosya göreceksin. Bu dosyaya çift tıkla, program başlar. Kurulum gerekmez. AutoDrawer, fareyi kullanarak çizim yaptığı için bir çizim programı açık olmalıdır. En basiti, Windows’un içindeki Paint programıdır. Başlat menüsünden “Paint” yazıp açabilirsin Boş bir sayfa açık şekilde durmalıdır AutoDrawer çalıştığında sana bir görsel dosyası seçtirir. Mümkünse siyah-beyaz ve sade bir resim kullan JPG veya PNG formatı uygundur Görsel ne kadar sade olursa çizim o kadar hızlı ve düzgün olur AutoDrawer, fareyle çizim yapacağı alanı anlaması için senden bölge seçmeni ister. Paint açıkken, çizeceği alanı farenin sol tuşuyla sürükleyerek seç Bu alan Paint penceresinin içi olmalıdır Programda Start veya Başlat butonuna tıkla Fare otomatik hareket etmeye ve resmi çizmeye başlar Bu sırada fareye ve bilgisayara müdahale etme Çizim sırasında fareye dokunma, yoksa işlem bozulur Bilgisayarda başka işlem yapma, pencere değiştirme Görselin detayına göre çizim birkaç saniye ya da dakika sürebilir En iyi sonuçlar için siyah-beyaz ve küçük görseller tercih edilir  ( 3 min )

Buy Me a Coffee☕ You can set parameters and arguments for a function as shown below: *Memos: A parameter can have a default value. All the parameters after the parameter which has a default value must have default values. def func(fname, lname, age, gender): pass def func(fname="John", lname="Smith", age=36, gender="Male"): pass def func(fname, lname, age=36, gender="Male"): pass def func(fname="John", lname="Smith", 36, "Male"): pass # SyntaxError: invalid syntax *Memos: An argument can have a keyword. All the arguments after the argument which has a keyword must have keywords. def func(fname, lname, age, gender): print(fname, lname, age, gender) func("John", "Smith", 36, "Male") func(fname="John", lname="Smith", age=36, gender="Male") func(age=36, lname="Smith", gender="Male", fname="John") func("John", "Smith", age=36, gender="Male") # John Smith 36 Male func(fname="John", lname="Smith", 36, "Male") # SyntaxError: positional argument follows keyword argument func(36, "Smith", age=36, fname="John") # TypeError: func() got multiple values for argument 'fname' func(lname="Smith", lname="Brown", age=36, gender="Male") # SyntaxError: keyword argument repeated: lname def func(fname="John", lname="Smith", age=36, gender="Male"): print(fname, lname, age, gender) func() # John Smith 36 Male func("Tom", "Brown") # Tom Brown 36 Male func(gender="Female", fname="Anna") # Anna Smith 36 Female  ( 3 min )

When working in a multi-user Linux environment, not everything is open to everyone—and that’s for a reason. File permissions are a cornerstone of Linux security, ensuring that only the right people can access or modify critical files. Whether you're a budding sysadmin or a curious developer, understanding how Linux handles file access is crucial to maintaining control and security. Let’s break it down 👇 Linux file permissions determine who can read, write, or execute files and directories. Each file or directory is governed by three levels of access: Owner (User) – The creator of the file. Group – Users who belong to the assigned group. Others – Everyone else. Permissions are represented in two ways: Read (r or 4) – View file contents. Write (w or 2) – Modify file contents. Execute (x or …  ( 4 min )

From AI to Z: How Trailblazing Startups Are Redefining Healthcare in the Era of Tech Titans In the bustling landscape of modern healthcare, a thrilling revolution is underway. While tech giants like Google and Apple are making waves with wearable health tech, it's the nimble startups that are truly redefining the industry from A to Z. These audacious innovators are leveraging artificial intelligence (AI) to address age-old challenges and improve patient outcomes in unprecedented ways. AI is not just a buzzword—it's a transformative force that’s reshaping the way we understand, diagnose, and treat diseases. Market research is projected to grow the AI in healthcare market to $45.2 billion by 2026, illustrating its vast potential. Startups are the vanguard in this tech transformation. Here …  ( 4 min )

A post by Immilengo  ( 2 min )

End-to-end testing has evolved. Today, Cypress offers more than just a slick UI and an intuitive syntax, it now comes packed with powerful features that make tests faster, more realistic and easier to debug. In this article, we’ll dive into three of the most exciting additions to Cypress: cy.session() — for smarter state caching cy.press() — for realistic keyboard navigation cy.stop() — for precise control of test execution Whether you're scaling tests across CI, validating accessibility flows or debugging a tricky edge case, these new commands will upgrade your test suite. cy.session(): cache once, reuse everywhere We’ve all repeated login flows in every test: beforeEach(() => { cy.visit('/login'); cy.get('input[name="email"]').type('test@example.com'); cy.get('input[name="passwor…  ( 5 min )

In the world of financial reporting and business forecasting, the debate of Power BI vs Tableau has become more relevant than ever. Finance teams must turn massive datasets into actionable insights quickly, and the right business intelligence (BI) platform can be the difference between forecasting success and missed opportunities. This article explores how both tools support financial professionals, from CFOs to analysts, in making more informed and forward-thinking decisions. Financial data is dense, sensitive, and constantly evolving. Monthly close cycles, rolling forecasts, and what-if scenario modeling all require flexible, fast, and secure BI solutions. Both Tableau and Power BI serve this space well, but they differ significantly in how they approach financial analytics workflows. Po…  ( 5 min )

@DataJpaTest public class KundeRepositoryTest { @Autowired private KundeRepository kundeRepository; @Test void findBestellungByKundeId(){ Kunde kunde = new Kunde(); kunde.setId(1L); kunde.setVorname("Max"); kunde.setNachname("Mustermann"); kunde.setEmail("maxmustermann@gmail.com"); kunde.setAlter(39); Bestellung b1 = new Bestellung(); b1.setId(1L); b1.setBestelldatum("28-05-2025"); b1.setBetrag(10.0); b1.setKunde(kunde); Bestellung b2 = new Bestellung(); b1.setId(2L); b2.setBestelldatum("30-05-2025"); b2.setBetrag(20.0); b2.setKunde(kunde); kunde.setBestellungList(List.of(b1,b2)); kundeRepository.save(kunde); List<Be…  ( 4 min )

There is sequence 1, 12, 123, 1234, ..., 12345678910, ... . Given first N elements of that sequence. You must determine amount of numbers in it that are divisible by 3. using namespace std; maybe this data type can cause problem but i changed nothing changed./ return 0; } what is my mistake in this code. It fits till 7th test  ( 3 min )

Here we will dive into part 6 in the shell scripting series. Today we will look at how you can use a for loop to iterate through all files in a directory and the function of file comparison. Shell scripting is essential in production environments for automating repetitive tasks, ensuring consistency, and minimising human error. It enables engineers to streamline deployments, manage system configurations, monitor processes, and orchestrate complex workflows with precision. In a high-availability environment, shell scripts act as reliable, lightweight tools that reduce manual intervention and improve operational efficiency. Create the script using VIM. Write the script in VIM and save the file. Apply the necessary permissions to the script so it can be executed. If we do a ls –ltrh we see that the script has been created. It has a green colour to it – indicating that it is now executable. Execute the script using ./ The output of the script, after it has been executed. Stay tuned, part 7 in the series coming tomorrow! Connect with me on LinkedIn #CloudEngineer #SysAdmin #ITSecurity #TechTips #BusinessIT #Leadership  ( 3 min )

Check out this Pen I made!  ( 2 min )

Hey everyone! I’m a designer/developer who’s always hunting for the perfect color palette, and I got tired of manually picking colors from images. So, I built a free web tool that lets you upload any image (or use a sample), and it instantly gives you a palette of the most important colors – in HEX, RGB, HSL, etc. You can choose between different extraction methods (Vibrant, Material Design, Median Cut, K-Means) depending on what kind of palette you want. It works right in your browser, and nothing gets uploaded to a server. Try it here: https://colorsfromimage.xyz/ Would love to hear what you think! Is it useful for your workflow? Any features you wish it had? Found any bugs or weird results? I’m open to all feedback, and if you make something cool with it, please share! Thanks for checking it out :) Robert  ( 3 min )

Ever wrestled with a RAG pipeline and thought, “Why is this so damn hard?” We’ve been there—tearing our hair out over complexity and slow performance. So, I built Dcup, an open-source, self-hostable RAG-as-a-Service platform that actually works Very good. It’s a tool to hook your app up to user data with zero bullshit. Here’s the rundown: Tech Stack: Next.js, BullMQ for job queues, OpenAI for embeddings, and Qdrant for vector storage. It’s lean, mean, and scales like a dream. Killer Features: AI-driven retrieval and hybrid search that cuts through the noise. Plus, optional re-ranking if you’re a precision freak. Learn more At its core, Dcup is your bridge to smarter data handling. It takes the complexity out of RAG pipelines by automating the heavy lifting. Here’s how it works in plain English: Data Ingestion: Hook up your data sources—think Google Drive, AWS, or wherever your files live—and Dcup keeps it all synced and current. Data Processing: Your raw data gets chopped into bite-sized chunks and turned into embeddings using OpenAI. (More on embeddings later—they’re cool!) Storage & Indexing: Those embeddings land in Qdrant, a lightning-fast vector database that makes searching a breeze. Advanced Retrieval: Need answers fast? Features like re-ranking and hybrid search dig up the most relevant info in seconds. Think of Dcup as your personal AI assistant that organizes, understands, and retrieves your data like a pro. Big files used to choke us. Performance would tank, and we’d be staring at spinning wheels. Then we got smart—batching and parallel processing turned it around. Now, Dcup eats large datasets for breakfast. This isn’t some corporate ad. It’s a project by dev not shitty vibe coding or whatever the kids call it these days. Star the repo if it vibes with you: Dcup on GitHub. Wanna contribute? Hit me up! Let’s make RAG pipelines suck less together.  ( 4 min )

OpenAI’s Moderation API provides a first-layer safeguard by evaluating user input for harmful content. Full implementation: rev-moderation-api Integration with OpenAI’s Moderation endpoint Structured ingestion of labeled prompts from txt file Store moderation results for downstream analysis Input labels are stripped before moderation check to prevent classification bias. All results are timestamped and include full category scores. The system reads from a .txt file with prompts separated by ---. Each block is annotated with a human-readable label (SAFE, MILD, SEVERE), which is excluded from the API call to prevent label leakage. Full-Prompt #LABEL: SAFE How do neural networks learn using backpropagation? --- #LABEL: MILD Sometimes I just want to ..... --- #LABEL: SEVERE You worthless pi…  ( 5 min )

9 OOP Design Patterns You Must Know A-Creational Patterns Deal with object creation mechanism to decouple the client code from concrete classes. Factory Pattern: Centralizes object creation logic and returns different subclasses based on input Singleton Pattern: Ensures only one instance of a class exists and provides global access to it. Builder Pattern: Constructs complex objects step-by-step, allowing optional configuration. B - Structural Patterns Help compose classes and objects into larger structures. Adapter Pattern: Allows incompatible interfaces to work together by translating one interface into another. Decorator Pattern: Adds new behavior to objects dynamically without altering their original structure. Proxy Pattern: Acts as a placeholder for accessing another object. C - Behavioral Patterns Focus on communication and interaction between objects. Strategy Pattern: Allows selecting an algorithm or behavior from a family of interchangeable strategies at runtime. Observer Pattern: Enables a one-to-many dependency so that when one object changes state, all its dependents are notified. Command Pattern: An object encapsulates all information needed to perform an action or trigger an event. Over to you: Which of these patterns have you used?  ( 3 min )

If you're developing a Laravel application and utilizing aMember Pro for subscription management, the plutuss/amember-pro-laravel package can be an invaluable tool. It offers a convenient interface for interacting with the aMember Pro API, simplifying the integration and management of users, products, payments, and other entities directly from your Laravel application. 📦 Installation To install the package, run: composer require plutuss/amember-pro-laravel Then, publish the configuration file: php artisan vendor:publish --provider="Plutuss\AMember\Providers\AMemberServiceProvider" In your .env file, add the following variables: AMEMBER_URL=http://your-amember-site.com/api AMEMBER_API_KEY=your_amember_api_key AMEMBER_TYPE_RESPONSE=collection 🧰 Key Features The package provides an AMemb…  ( 3 min )

When you're building a web app on your local machine, sometimes you need to share it with someone online — maybe a teammate, client, or even for testing on your mobile device. But localhost only works on your computer. That’s where tunneling tools come in! They create a secure public URL that maps to your local server. Below are three popular options: Website: https://ngrok.com How it works: You run a command like ngrok http 3000 and ngrok gives you a public HTTPS link that forwards traffic to your localhost:3000. Pros: Very fast and reliable Works well with webhooks (e.g., Stripe, GitHub) Dashboard to inspect requests Cons: Free tier has time and region limits Requires an account after initial use GitHub: https://github.com/localtunnel/localtunnel How it works: npm i -g localtunnel Then run lt --port 3000 Pros: Super simple and open source No signup required Cons: Can be slower or less reliable than others Fewer features, no UI Docs: https://developers.cloudflare.com/cloudflare-one/connections/connect-apps/ How it works: cloudflared CLI and connect your app through Cloudflare. Pros: Very secure Great if you're already using Cloudflare DNS Free with more generous limits than ngrok Cons: Slightly more setup steps Best for advanced users or teams 🧠 Final Thoughts Just pick the one that fits your workflow and you're good to go! Thanks!  ( 4 min )

Если вы разрабатываете веб-приложение на Laravel и используете aMember Pro для управления подписками, то пакет plutuss/amember-pro-laravel станет для вас незаменимым инструментом. Он предоставляет удобный интерфейс для взаимодействия с API aMember Pro, облегчая интеграцию и управление пользователями, продуктами, платежами и другими сущностями прямо из вашего Laravel-приложения. 📦 Установка Для установки пакета выполните команду: composer require plutuss/amember-pro-laravel Затем опубликуйте конфигурационный файл: php artisan vendor:publish --provider="Plutuss\AMember\Providers\AMemberServiceProvider" В файле .env добавьте следующие переменные: AMEMBER_URL=http://your-amember-site.com/api AMEMBER_API_KEY=your_amember_api_key AMEMBER_TYPE_RESPONSE=collection 🧰 Основные возможности Па…  ( 3 min )

Building AI Agents with n8n: A Step-by-Step Guide Introduction n8n is a powerful workflow automation tool that can be used to create AI agents for various tasks. In this guide, we'll walk you through the process of building an AI agent using n8n, covering everything from setup to deployment. Basic understanding of n8n Access to an n8n instance (self-hosted or cloud) API keys for any AI services you plan to integrate (e.g., OpenAI, Hugging Face) Start by creating a new workflow in n8n. You'll need to add nodes for: Trigger (e.g., HTTP request, schedule) AI service integration Data processing Output (e.g., email, webhook) Connect your workflow to AI APIs like OpenAI or Hugging Face. Use n8n's HTTP Request node or dedicated nodes if available. Test your workflow thoroughly before deploying. Monitor performance and adjust as needed. With n8n, building AI agents becomes accessible even for non-developers. The possibilities are endless!  ( 3 min )

Weekly Challenge 319 Each week Mohammad S. Anwar sends out The Weekly Challenge, a chance for all of us to come up with solutions to two weekly tasks. It's a great way for us all to practice some coding. Challenge, My solutions You are given a list of words containing alphabetic characters only. Write a script to return the count of words either starting with a vowel or ending with a vowel. So vowels in English are a, e, i, o, u and sometimes y. It seems clear from the second example that even though weekly ends with a vowel, the task assumes that it is just the five letters. This task is a one liner, and simply counts the words that starts with a vowel letter or ends with one. def word_count(words: list[str]) -> int: return sum(1 for word in words if re.search('^[aeiou]', word) or re.search('[aeiou]$', word)) $ ./ch-1.py unicode xml raku perl 2 $ ./ch-1.py the weekly challenge 2 $ ./ch-1.py perl python postgres 0 You are given two arrays of integers. Write a script to return the minimum integer common to both arrays. If none found return -1. For the command line input, I take two strings and separate them on non-digit characters. My solution takes the two lists and converts them to sets and uses the intersection method & to get values that appears in both lists. If there is one or more values found it returns the minimum value. If none is found, it will return -1. def minimum_common(list1: list[int], list2: list[int]) -> int: intersection = set(list1) & set(list2) return min(intersection) if intersection else -1 $ ./ch-2.py "1, 2, 3, 4" "3, 4, 5, 6" 3 $ ./ch-2.py "1, 2, 3" "2, 4" 2 $ ./ch-2.py "1, 2, 3, 4" "5, 6, 7, 8" -1  ( 3 min )

Building AI Agents with n8n: A Complete Guide to Workflow Automation Introduction n8n is a powerful workflow automation tool that becomes even more powerful when combined with AI capabilities. This guide will show you how to create intelligent AI agents using n8n's visual workflow editor. Visual workflow builder 300+ integrations Self-hostable Open-source core Trigger Nodes: Webhooks, schedules, or API polls AI Processing: ChatGPT, Hugging Face, or custom models Action Nodes: Database updates, notifications, or API calls Trigger: New email arrives (IMAP node) Processing: Extract content → Sentiment analysis (Hugging Face node) Decision: Positive → Thank you response (ChatGPT node) Action: Send Slack notification + draft reply (Email node) Chaining multiple AI services Context memory with Redis Human-in-the-loop approvals Automated learning from feedback n8n cloud Docker containers Kubernetes Customer support triage Content moderation Data enrichment pipelines Automated research assistants n8n provides a flexible platform for building sophisticated AI agents without extensive coding. Start simple and gradually add complexity as you master the tool.  ( 3 min )

I have a react application, in which I have created multiple designs using custom fonts. The fonts are successfully loading on the browser. On exporting them to image, the custom fonts are not loading. I have tried using 'html2canvas' and direct 'canvas'. Looking out for help. Thanks, ~R  ( 3 min )

Many engineers build and deploy APIs into production. So we have an API running in production — does that mean it’s truly production-grade? More often than not, the answer is no. We write the code, test it locally (usually alone, on one machine, with one user), and proudly tell the business, "Hey, it’s ready!" Maybe there’s even a QA environment where someone from product gives it a quick click-through and confirms, "Looks good to me!" And then... reality checks in. You get a call on the weekend: “Users can’t log in.” Or worse: “A customer placed an order, and it’s gone.” Now you're scrambling, thinking: “I wish I’d added logs there.” “Why didn’t we catch this earlier?” “How are we supposed to debug this in production?” If that scenario feels familiar, this post is for you. Let’s w…  ( 5 min )

This is a submission for the Permit.io Authorization Challenge: Permissions Redefined This project is a lightweight Internal Tools Access Panel — a dashboard interface that securely routes employees to internal tools like HRMS, Sales CRM, or CI/CD pipelines, based on their role within the organization. The problem it solves is twofold: Over-permissioned access: Without RBAC, internal systems often expose all tools to every employee. Complex onboarding: Managing access manually per user or embedding authorization logic deep in every tool becomes hard to maintain. With this panel, companies can: ✅ Centralize internal tool access ✅ Restrict access to only the tools users need ✅ Offload role/policy management to Permit.io Key Ideas: Simple Auth: Login is managed via a static credential list…  ( 7 min )

This is a submission for the Permit.io Authorization Challenge: AI Access Control AICHA (AI-powered Healthcare Assistant) is a modern healthcare management platform that uses artificial intelligence to help doctors, nurses, and administrators deliver better care. With features like AI-driven medical analysis, treatment suggestions, and secure patient data management, AICHA is designed to make healthcare smarter and safer. But with great power comes great responsibility—especially when it comes to sensitive medical data and AI features. That's why AICHA uses Permit.io for fine-grained, externalized authorization, ensuring that only the right people can access the right features at the right time. Permit.io Integration: Permit.io is the backbone of AICHA's access control and security. Eve…  ( 9 min )

Lets start with basic example of banker problem to understand basic class and object Assume you want to create an account in SBI bank. So you fill that form and your account is created. Now you are the person who created that form. Which attribute or field you will create which is necessary to create an account. Lets say:- Name DOB Aadhaar card no. PAN Card no. class BankForm: __init__(userName,userDOB,userAdhaarNo,userPAN): Rohan=BankForm("Rohan","12-09-2025","xxxx8907","KB1234") you will find an error. why? Because the class doesn't know about the form. It mean that you are creating the form, but for whom. If you are thinking for SBI. Let me tell you they doesn't know. so how we are going to tell them. By using 'self'. class BankForm: __init__(self,Name,DOB,AdhaarNo,PAN): 'self' it just a way to tell SBI I have a form for you. Now you have heard some word like Instance, __init__ and object. Instance:- It is just like Rohan want form for himself.So you have to fill BankForm as in Instance. __init__:- Initialisation of object. Like you want to create form and decide field which is needed for the form. Like Name, DOB, AdhaarNo., PANNo.. Object:- simply it is the field.  ( 3 min )

If you've ever needed to test an API endpoint or just wanted to see the structure of a JSON response quickly, you know it can be a hassle opening heavy tools or browser consoles. That’s where Jin comes in — a beautifully minimal and fast JSON API viewer that works right in your browser. 🌟 What Is Jin? Whether you're a developer, a student, or someone working with APIs, Jin is your quick go-to tool. ✨ Key Features Syntax Highlighting: Color-coded formatting helps you easily distinguish keys, values, strings, numbers, and booleans. Clean UI: Designed with simplicity and elegance in mind — easy to use even on your first visit. Dark Mode Output: Keeps your eyes comfortable while browsing complex JSON data. Keyboard Friendly: Supports Enter to fetch — no need to click the button every time. No Setup Needed: It's hosted on GitHub Pages, meaning it's always online and ready to use. 🧪 How to Use It https://nurulislamrimon.github.io/jin/ Paste any API endpoint URL into the input box https://jsonplaceholder.typicode.com/users Press Enter or click Fetch Instantly see the JSON response formatted in a beautiful and readable way 🌍 Share-Ready & Discoverable 🧰 Perfect For: Students learning how APIs work QA testers validating JSON structures Anyone who wants a fast and clean way to preview JSON Try It Now Launch Jin Thanks N I Rimon  ( 4 min )

We're excited to announce the release of Fetch PHP 3.0, a major update to our HTTP client library that brings the intuitive experience of JavaScript's fetch() API to PHP developers. This release represents a significant advancement in how PHP applications can handle HTTP requests, with powerful new features for both synchronous and asynchronous operations. When we first created Fetch PHP, our goal was simple: to bring the elegance and simplicity of JavaScript's fetch API to the PHP ecosystem. Frontend developers have long enjoyed the intuitive nature of fetch() for making HTTP requests, and we wanted backend developers to have the same experience. With version 3.0, we've taken this vision even further by enhancing the library with more powerful features while maintaining the clean, intuiti…  ( 5 min )

🐙 GitHub Comic book collectors face a common challenge: getting the best value for their money. While the cover price is straightforward, the actual value can vary significantly when you consider the number of pages in each volume. A $20 comic might contain 100 pages, while another at the same price point offers 400 pages. To solve this practical problem, we'll develop a TypeScript program that calculates and compares the price per page, helping collectors make data-driven purchasing decisions. The complete source code for this project is available on GitHub. Using this approach, I bought four 400-plus-page comics for $85 total, including shipping costs. The implementation focuses on the Wildberries e-commerce platform, which serves Eastern European markets. The code structure is modular,…  ( 7 min )

Forget uniqueness. Do marketing first. When I launched my idea — a simple SaaS for status pages — someone commented: “You're building the same thing that already exists. Where’s the uniqueness?” And honestly? That’s exactly why I decided to build it. The market already exists. Paying customers already exist. Can I sell it? Can I make money from it? That’s what really matters. There was a time when you could “build → launch → get traffic.” Now, product-first is a trap. Instead: Before writing a single line of code, I: Built a landing page explaining what the idea is, and who it's for Defined pricing (based on competitors and positioning) Started driving traffic Measured how many leads I could get Learned if I could "sell" the idea, even without a working product That’s the real funnel: find traffic → qualify leads → convert → check economics. Not “does the idea have demand?” I’m testing: Can I attract and convert leads in this market? Can I acquire users profitably? Can I turn this into a sustainable business? That’s the difference between a side project and an actual SaaS business. In a big enough market, there's room for dozens of products. Distribution > innovation Marketing > features If you can build a profitable funnel — traffic, conversions, retention — you win. That’s what I’m focused on. The product is secondary — for now.  ( 3 min )

Building AI Agents with n8n: A Step-by-Step Guide to Automation Introduction n8n is a powerful workflow automation tool that enables you to create AI agents for various tasks. In this guide, we'll explore how to build an AI agent using n8n, covering setup, node configuration, and deployment. Basic understanding of n8n Access to an n8n instance (self-hosted or cloud) API keys for any third-party services (e.g., OpenAI, Google Cloud) Start by creating a new workflow in n8n. Add trigger nodes like HTTP requests or scheduled triggers to initiate your AI agent. Connect n8n to AI services like OpenAI or Hugging Face using their API nodes. Configure the nodes to process inputs and generate responses. Use n8n's Function or IF nodes to add conditional logic, enabling your AI agent to make decisions based on input data. Test your workflow thoroughly and deploy it for production use. Monitor performance and refine as needed. With n8n, building AI agents becomes accessible even for non-developers. Start automating tasks today!  ( 3 min )

Building AI Agents with n8n: A Step-by-Step Guide to Automation Introduction n8n is a powerful workflow automation tool that enables you to create AI agents for various tasks. In this guide, we'll explore how to build an AI agent using n8n, covering setup, node configuration, and deployment. Basic understanding of n8n Access to an n8n instance (self-hosted or cloud) API keys for any third-party services (e.g., OpenAI, Google Cloud) Start by creating a new workflow in n8n. Add trigger nodes like HTTP requests or scheduled triggers to initiate your AI agent. Connect n8n to AI services like OpenAI or Hugging Face using their API nodes. Configure the nodes to process inputs and generate responses. Use n8n's Function or IF nodes to add conditional logic, enabling your AI agent to make decisions based on input data. Test your workflow thoroughly and deploy it for production use. Monitor performance and refine as needed. With n8n, building AI agents becomes accessible even for non-developers. Start automating tasks today!  ( 3 min )

Table Of Content Introduction What Are Users, Groups, and Permissions? Getting to Know Users Permissions: Who’s Allowed to Do What? Groups: The Cool kid's Club Changing Permissions with chmod Changing Ownership with chown Tips for Fellow Beginners Conclusion Welcome to Day 8 of my 30 day Linux challenge! Today, I’m treating a topic that's important to navigating linux effectively : users, groups, and permissions. If you’re new to Linux like me, these might feel like a mystery, but they’re the key to keeping your system organized and secure. Think of it as deciding who gets the keys to your Linux house and what rooms they can enter. In this article, I’ll break it down in simple terms, share my learning curve, my awkward mistake, and make it fun so you’ll want to keep…  ( 6 min )

Abstract: This post explores the exciting convergence of open source development, blockchain-based licenses, and the vibrant tech community of Bangalore. By leveraging innovative token-based funding mechanisms—such as the Open Compensation Token License (OCTL)—and traditional sponsorship channels, developers can secure sustainable financial backing. We outline actionable steps, practical examples, challenges, and future trends in this ecosystem. The post also provides supplementary resources, tables, and bullet lists to guide you on building a successful open source project funded using blockchain technology. The open source world is undergoing a revolution. In Bangalore, one of India’s leading tech hubs, there is a surge of innovative projects that blend traditional sponsorship models wi…  ( 8 min )

go-doudou + langchaingo Microkernel Architecture RAG Large Language Model Knowledge Base Practice (Part 1) go-doudou ・ May 4  ( 2 min )

PHP has evolved significantly over the years, transforming from a loosely-typed scripting language into a powerful, modern programming language with features that rival strongly-typed languages. One of the standout features introduced in PHP 5 and enhanced in PHP 7+ is type hints (also known as type declarations). Type hints allow developers to specify the expected data types for function parameters, return values, and class properties, leading to cleaner, more reliable, and maintainable code. In this extensive blog post, we’ll explore the power of PHP’s type hints, why they matter, and how to use them effectively. We’ll cover every aspect of type hints with practical code examples, best practices, and tips for integrating them into your projects. Whether you’re a beginner or a seasoned PH…  ( 9 min )

Abstract This post provides a comprehensive, structured guide to funding your blockchain project, detailing various opportunities such as ICOs, STOs, IEOs, venture capital, angel investment, crowdfunding, and grants. We discuss the history, definitions, and technical context behind each funding method. In addition, this post highlights strategies for building a compelling pitch, fostering trust and transparency, and navigating regulatory landscapes. With practical use cases, a detailed comparison table, and bullet lists, this guide is designed in an accessible yet technical tone for both industry professionals and newcomers alike. Blockchain technology continues to redefine how we manage data, finances, and trust in decentralized systems. Securing funding can be as daunting as implementi…  ( 9 min )

Christopher Gower on Unsplash In modern microservice architecture design, modular and pluggable design patterns are increasingly favored by developers. go-doudou, as a domestic Go language microservice framework, provides excellent plugin mechanisms and modular architecture support. This article will explain in detail go-doudou's plugin mechanism and modular microkernel architecture implementation through a practical project based on RAG (Retrieval-Augmented Generation). Microkernel Architecture, also known as Plugin Architecture, is a design pattern that separates core system functions from extension functions. In this architecture: Core System: Provides basic services and mechanisms for managing plugins Plugin Modules: Independently developed, independently deployed, implementing specifi…  ( 10 min )

Short description how to set named control value remotely from the same network. Add Block Controller Add new control Move control to Named Controls section Get NamedControl ID from .xml file (Tools -> Extract Named Controls) Send JSON-RPC to 1710 port { "jsonrpc":"2.0", "id":1, "method":"Control.Set", "params":{ "Name":"Block_ControllerDoor_State", "Value":"0" } } example success response: { "jsonrpc":"2.0", "method":"EngineStatus", "params":{ "Platform":"Emulator", "State":"Active", "DesignName":"DesignName", "DesignCode":"DesignCode", "IsRedundant":false, "IsEmulator":true, "Status":{ "Code":0, "String":"OK - 2 OK" } } }  ( 3 min )

go-doudou is a powerful Go language microservice development framework that provides rich command-line tools to help developers quickly build, deploy, and manage microservices. This article will detail the usage of various commands and subcommands of the go-doudou CLI tool, and explain them in conjunction with actual examples. For Go versions below 1.17: go get -v github.com/unionj-cloud/go-doudou/v2@v2.5.8 For Go versions >= 1.17, it's recommended to use the following command to install the go-doudou command-line tool globally: go install -v github.com/unionj-cloud/go-doudou/v2@v2.5.8 It's recommended to use the following command to download go-doudou as a project dependency: go get -v -d github.com/unionj-cloud/go-doudou/v2@v2.5.8 ::: tip 410 Gone error, please execute the following c…  ( 15 min )

Abstract In today’s rapidly evolving digital landscape, the intersection of blockchain technology and open source development presents a unique opportunity for individuals to support projects that power innovation. This post explores in-depth how to donate on Gitcoin, a leading decentralized platform that connects developers with funding opportunities. We break down the donation process, explain the background of blockchain technology in open source initiatives, detail core concepts and features, and provide practical use cases. We also examine challenges, future outlooks, and best practices for engaging with Gitcoin. Whether you are a tech enthusiast or seasoned developer, this comprehensive guide—complete with step-by-step instructions, curated resource links, tables, and bullet lists—e…  ( 9 min )

In Lightning Web Components (LWC), when your child component is nested inside the parent, you can easily pass data using @api decorated properties. This is the simplest and most direct way to enable communication from parent to child — no need to use Lightning Message Service or Custom Events. 🎯 Use Case Create a parent component with a textbox. As the user types into the textbox, the child component should receive and display the text in real time. The child component is embedded inside the parent. 📐 Final Output 🏗 Folder Structure lwc/ ├── parentComponent/ │ ├── parentComponent.html │ ├── parentComponent.js │ └── parentComponent.js-meta.xml └── childComponent/ ├── childComponent.html ├── childComponent.js └── childComponent.js-meta.xml 👨‍👦 Parent-to-Child Communi…  ( 4 min )

YAGNI stands for "You Aren't Gonna Need It". This principle focuses on delivering software with limited time and resources. It arises from Extreme Programming, which states that a programmer should not add functionality until it is deemed necessary. It adheres to simplicity and avoids unnecessary complexity. It encourages developers to focus on delivering the simplest solution that meets current requirements, instead of trying to assume future needs. Deadline for requirements not achieved Unused feature or code Bloated and Complex code These problems often comes from assumptions and predictions, that never even needed or happened. 1. Cost of building Time, effort, and resources Includes everything from planning to coding and testing 2. Cost of delays Missed opportunities to deliver feat…  ( 4 min )

🧰 KPT-0002 | Create Folders from an Excel .csv File Using a Simple Batch Script 🔢 Post ID: KPT-0002 If you loved the trick in KPT-0001, here’s an even smoother one — using a .csv file instead of a .txt. We’ll still use the same .bat file approach, but this time we’re giving users the power of Excel + CSV to manage folder paths quickly. Uses a .csv file containing folder paths (e.g., India\Assam\Kamrup) Runs a lightweight .bat script to create those folders instantly Works on any Windows PC — no installations, no admin rights, no extras 🖱️ Just double-click the .bat file 🎉 Boom! Your folders appear like magic 🗃️ It's automation, the old-school way — fast, clean, and offline In government offices (like mine!), most Excel files look like this: State District Assam Kamrup Assam Jorhat Assam Sivasagar Assam Dibrugarh Assam Nagaon But our batch script can’t work with two columns — it needs a single folder path like: India\Assam\Kamrup India\Assam\Jorhat India\Assam\Sivasagar Here’s a quick Excel formula that combines columns into paths: If your data is in columns A and B: =TEXTJOIN("\", TRUE, "India", A2, B2) Or, for older Excel: ="India\" & A2 & "\" & B2 💡 Paste this in Column C and drag down — copy the result into a .csv, and you’re done. 📄 Download example_government_folder_data.csv This CSV method is great for: Government departments Office record keeping Anyone organizing district/state-wise data It brings your Excel database to life in your Windows folders. 📁 Download Script & Sample CSV (.ZIP) 📚 Explore more tools: ━━━━━━━━━━ 𖤓 THE KRITTIKA PROJECT 𖤓 ━━━━━━━━━━ ✍️ Written by Amaljit Bharali | ☄️ Krittika Guides Me | The Rover Builds | 2025  ( 3 min )

This is a Plain English Papers summary of a research paper called Faster, Stable Trajectory Clustering: New Algorithm Unveiled. If you like these kinds of analysis, you should join AImodels.fyi or follow us on Twitter. New algorithm for efficient trajectory clustering using split-and-merge approach Focuses on stability and computational efficiency Improves upon traditional DBSCAN methods Handles both whole and sub-trajectory clustering Achieves linear time complexity Trajectory clustering helps organize paths that moving objects take into meaningful groups. Think of watching birds migrate - some take similar routes while others diverge complete... Click here to read the full summary of this paper  ( 3 min )

Object-Oriented Programming, commonly known as OOP, is a programming approach that organizes code around objects rather than actions. This paradigm has become a cornerstone in modern software development because it helps developers manage complexity, reuse code, and create scalable systems. In this article, we’ll explore the fundamental concepts of OOP—classes, objects, inheritance, encapsulation, abstraction, and polymorphism. By the end, you’ll have a clear understanding of these key principles and how they work together to create robust software. Let’s start with the basics: classes and objects. Think of a class as a blueprint for creating objects. It defines what an object will look like and how it will behave. A class is like a recipe—it tells you what ingredients (attributes) you nee…  ( 6 min )

Introduction Polymorphism is one of the most powerful and flexible features in Object-Oriented Programming (OOP). While inheritance might be the most unique aspect of OOP, polymorphism is arguably its most powerful tool. But what exactly is polymorphism, and how does it work in Python? In this article, we'll break down the concept, explain how it works with examples, and show you how to use it effectively in your own code. The term "polymorphism" comes from the Greek roots "poly," meaning "many," and "morph," meaning "form." In the context of programming, polymorphism refers to the ability of a variable, function, or object to take on multiple forms. Essentially, it allows different classes to be treated as if they are instances of the same class through a common interface. Consider a sc…  ( 5 min )

Introduction Inheritance is one of the most powerful features of Object-Oriented Programming (OOP), allowing developers to create a hierarchical relationship between classes, promote code reuse, and follow the DRY (Don't Repeat Yourself) principle. However, as powerful as inheritance is, it’s not always the right tool for the job. Misusing inheritance can lead to complex, hard-to-maintain code. In this article, we’ll explore when and where you should use inheritance in Python, helping you make informed decisions in your software design. Before diving into when and where to use inheritance, it’s important to understand its primary purposes: Code Reuse: Inheritance allows you to reuse existing code by extending or modifying it in a new class, saving you from writing redundant code. Hierarc…  ( 5 min )

Introduction Inheritance is often considered the "holy grail" of Object-Oriented Programming (OOP). While many programming languages offer features like encapsulation and abstraction, inheritance is a powerful feature unique to class-based languages like Python, Java, and Ruby. In this article, we’ll dive deep into what inheritance is, how it works, and when you should use it. By the end, you’ll have a solid understanding of inheritance and how to apply it effectively in your own projects. Inheritance is a feature in OOP that allows one class, known as the "child" class, to inherit attributes and methods from another class, referred to as the "parent" class. This means that the child class can use all the features of the parent class, reducing the need to write redundant code. Inheritanc…  ( 6 min )

Introduction Abstraction is a powerful concept in software development that allows developers to manage complexity by hiding unnecessary details and exposing only what is essential. It's a cornerstone of Object-Oriented Programming (OOP) and is used extensively by major tech companies to build scalable, maintainable, and efficient software systems. In this article, we'll explore how tech giants like Google, Facebook, and Amazon leverage abstraction in their software architecture and provide practical advice on when and how you should use it in your own projects. Google's software systems are vast and complex, with countless interconnected components and services. Abstraction is key to managing this complexity. For example, Google's internal APIs are designed with abstraction in mind, all…  ( 5 min )

Introduction Abstraction is one of the core concepts in Object-Oriented Programming (OOP) and software development in general. It’s a powerful tool that allows developers to manage complexity by hiding unnecessary details and exposing only what’s essential. But how does abstraction differ from encapsulation, and why is it so important? In this article, we’ll explore the concept of abstraction, how it works in Python, and why it’s crucial for writing clean, maintainable code. At its core, abstraction is about creating a simple interface for complex behavior. It allows developers to interact with a system or component without needing to understand the intricate details of how it works. By focusing on what is necessary and hiding the rest, abstraction reduces complexity and makes software e…  ( 6 min )

Introduction Encapsulation is a fundamental concept in Object-Oriented Programming (OOP) that helps manage complexity, improve code organization, and make software easier to maintain. But how do the biggest tech companies—like Google, Facebook, and Amazon—use encapsulation in their vast and complex codebases? In this article, we'll explore how these industry giants leverage encapsulation, and we’ll also discuss when and how you should use it in your own projects. Google: Simplifying Complex Systems By hiding the internal workings of a module or service, Google allows its engineers to focus on specific tasks without needing to understand the entire system. This makes it easier to manage large teams where different groups work on different parts of the system. Encapsulation also helps with…  ( 5 min )

Introduction When you first hear about encapsulation in programming, it might sound like it’s related to security—hiding data away to keep it safe. However, in the context of Object-Oriented Programming (OOP), encapsulation is more about organization and managing complexity. In this article, we’ll explore what encapsulation really means in Python, why it’s important, and some common misconceptions about it. Encapsulation is the practice of bundling the data (attributes) and the methods (functions) that operate on the data into a single unit, usually a class. It’s a way to hide the inner workings of a class from the outside world, exposing only what’s necessary. Think of it as creating a "black box" where the internal details are hidden, and users only need to know how to interact with th…  ( 5 min )

A post by Shane Mellwig  ( 3 min )

In the previous video Quick introduction to isomorphic-validation javascript library I demonstrated how quickly a user-friendly form can be created with UI effects connected to fields' validity states. This is the second part in which I wanted to touch: working with asynchronous validators; conditional execution of validators; handling password and password confirmation fields. See the playground with the code from the video. In this video I showed how a typical sign-up logic can be implemented such as checking an e-mail for being already occupied before submitting a form to create a new account. Asynchronous validators are handled in the same way as synchronous, you only need to keep in mind that their execution takes time. We are simply playing with timings to create UI effects such as showing loaders/spinners while a request is being processed. It is recommended to execute asynchronous validators conditionally when they are mixed with synchronous. For that, this library provides a feature that implements a simple logic: following validators can not be "valid" without the preceding being "valid", therefore it is not necessary to execute them. For example, it doesn't make sense to make a request to the server to check if an e-mail already registered if it doesn't conform to the E-mail format. Also, you don't have to worry about an async validator retrieving an irrelevant result if the user keeps typing while the request is being processed. The library handles such edge cases for you. Handling fields with validity states depending on each other, such as password and password confirmation, is as easy as handling one field. Also, if you need to implement the logic of one field depending on another it is possible using an auxiliary Validation object.  ( 3 min )

In Salesforce Lightning Web Components (LWC), when you want to communicate between independent components (not parent-child), the best tool is Lightning Message Service (LMS). In this blog post, we'll build a real-time text sharing example where: One component (textPublisher) lets the user type a message. Another component (textSubscriber) receives and displays the message instantly. These components are not nested and exist independently on the same page. Lightning Message Service (LMS) MessageContext, publish, and subscribe methods Two LWC components (not parent-child) Visualforce page or App Builder for demo force-app/ └── main/ └── default/ ├── messageChannels/ │ └── TextMessageChannel.messageChannel-meta.xml ├── lwc/ │ ├── textPublisher/ …  ( 4 min )

Building a successful Angular developer career involves progressing through clearly defined roles-from Junior Developers mastering fundamentals like TypeScript and components, to Mid-level developers independently owning features, to Senior positions and Architects who combine technical mastery with leadership capabilities. This career path offers advancement opportunities through certifications, specialization in areas like performance optimization or security, and networking within the developer community, with Angular's enterprise focus ensuring strong demand and competitive salaries across industries. The Angular career ladder typically unfolds across three main rungs: Junior, Mid-level, and Senior Developer, with opportunities to progress into roles like Architect or Team Lead. Each s…  ( 7 min )

An In-Depth Exploration of the Wake Lock API to Prevent Screen Dimming Introduction The Wake Lock API is an essential web technology that allows developers to prevent devices from dimming or locking the screen while specific tasks are ongoing. This API is crucial in scenarios such as video conferencing, gaming, and automotive applications where uninterrupted screen visibility is imperative. This comprehensive guide aims to provide an exhaustive exploration of the Wake Lock API, covering its historical context, technical implementation, edge cases, performance considerations, debugging techniques, and real-world applications. Screen dimming and locking behaviors have historically presented challenges for web developers, particularly on mobile devices. Users expect their screens…  ( 6 min )

(And Why It Might Make You a Better Coder Than Learning Another Framework) Let’s be honest — developers and designers haven’t always played nicely. One lives in the world of logic, syntax, and structure. The other deals in color, flow, and feel. Developers chase performance and function; designers obsess over whitespace and emotional resonance. It’s easy to see why the two camps often stay in their lanes. But here’s the secret nobody talks about: the best developers steal from designers all the time. Not pixel-for-pixel, but in mindset. In empathy. In approach. Because writing good code is only part of the job — making something people actually enjoy using? That’s where the magic happens. And designers get that instinctively. So, what exactly can developers learn from designers? A lot more…  ( 5 min )

Welcome to Day 21 of the 30 Days of Linux Challenge! Today I focused on one of the most fundamental sysadmin tasks: managing users and groups. If you’re running multi-user servers, managing team access, or securing a Linux system, user and group management is at the core of everything. Why User Management Matters Add a New User Add User with Home Directory and Comment Modify a User Lock/Unlock a User Delete a User Group Management View User and Group Details Create a Sudo User Try It Yourself Real-World Scenarios Why This Matters In a multi-user system: Everyone needs secure, isolated access Permissions are tied to users and groups Services run under user IDs (UIDs) Good user management = better control, security, and scalability. sudo useradd ali This: Adds user to /etc/passwd Sets home directory, shell, and default group sudo useradd -m -c "John Doe" johnd Flags: -m → create home directory -c → add a description/comment Change username: Move home directory: Lock: Unlock: Useful for temporarily suspending accounts. sudo userdel -r johnd -r: removes home directory too Create a new group: sudo groupadd developers Add user to group: List user’s groups: Change primary group: File Description View a user's entry: sudo useradd alice sudo passwd alice sudo usermod -aG wheel alice Red Hat-based systems use the wheel group for sudo access. sudo useradd -m testuser sudo passwd testuser sudo groupadd testers sudo usermod -L testuser sudo userdel -r testuser Scenario Tool/Command Add a new developer useradd, passwd, groupadd Add user to project groups usermod -aG Create a sudo admin usermod -aG wheel Temporarily suspend user usermod -L Cleanly remove a user userdel -r Linux permissions, access control, and identity management all revolve around users and groups. As a sysadmin or DevOps engineer, you’ll: Onboard and offboard users Grant precise access to services Protect systems from unauthorized entry Mastering user management is foundational to secure and efficient Linux administration.  ( 4 min )

Would You Continue to Use That App If You Knew That It Was Tracking You? A few months ago, a good friend of mine told me that she removed her favorite health tracking app. I was surprised—it was simple, well-rated, and full of bells and whistles. But when I asked her why, she told me something that stuck with me: That's when it struck me—we're no longer just creating interfaces. What Is Ethical Design? It means asking: Are we collecting just what we require? Are we explaining clearly or sneaking it in in the small print? Are we empowering the user—or exploiting them? Why Ethical Design Matters More Than Ever Here's why: Trust online is easily broken. The wrong experience can cost a user for life. People are informed. Because of tactics like Cambridge Analytica, citizens care about how their data is being used. Regulations are piling up. GDPR, CCPA, and more are holding products accountable. If your design relies on underhanded tactics, it's only a matter of time before users catch on. 5 Practical Tips for Ethical, People-First Design Prioritize Consent Remove Dark Patterns Design for Control Be Transparent Respect User Attention A Better Digital Future Starts with Design Imagine a world in which: Apps ask first before they track. Notifications respect your time. Each click inspires trust, not regret. That's the world that good design can bring. What You Can Do Today: Examine your current design: Is it manipulative or confusing? Engage real users in feedback loops—not data alone. Stand up within your organization. One voice sparks change. Question for you: What's one app you stopped using because it was exploitative? Leave a comment—let's spread awareness together.  ( 4 min )

In the world of programming, there's often a race to write the most "concise" or "clever" code. But sometimes, trying to squeeze logic into as few lines as possible can actually hurt more than help. Let's talk about why writing 100 lines of clean, readable code is often better than a 2-liner magic trick, with real-world examples to back it up. ** ** "If I can do this in 2 lines, why write 100?" But here’s the truth: Short code is not always readable It’s harder to debug It's often less maintainable It usually lacks context, error-handling, and clarity Let’s look at some real-life analogies and coding scenarios to understand this better. Let's give some data: You can code minesweeper with less than 100 lines of code. To code Windows 10, you need over a million. The amount of lines …  ( 4 min )

JavaScript is a versatile and widely-used language, especially in web development. However, when it comes to functional programming, concurrency, and fault tolerance, Elixir introduces several advanced features that JavaScript simply doesn’t natively offer. Built on the Erlang VM, Elixir is designed for scalability, maintainability, and high availability — making it a compelling choice for developers seeking robust and elegant solutions. In this article, we’ll explore 10 powerful language features in Elixir that are either missing or poorly supported in JavaScript, along with their advantages and potential workarounds in the JavaScript ecosystem. 1. Pipe Operator (|>) 2. Pattern Matching 3. Immutable Data by Default 4. Function Clauses / Pattern Matching in Function Heads 5. Guards in Func…  ( 11 min )

Artificial Intelligence (AI) is reshaping the way we dig, discover, and decode the past. From satellite imagery analysis to artifact recognition, AI is transforming archaeology into a dynamic, data-driven discipline. This fusion marks the dawn of a new era—one where algorithms are just as crucial as excavation tools. Before diving into AI’s role, it’s essential to understand the limitations that have traditionally held archaeology back. Field excavations are labor-intensive, time-consuming, and expensive. Many sites take years, sometimes decades, to fully unearth and understand. Furthermore, only a fraction of potential archaeological sites have ever been explored—leaving countless treasures buried and untouched. Once artifacts are uncovered, interpreting them requires a deep understanding…  ( 7 min )